389388888

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 288

約数和(自身を含む): 1334689200

約数和(自身を除く): 945300312

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 28, 36, 37, 38, 42, 49, 56, 57, 63, 72, 74, 76, 84, 98, 111, 114, 126, 133, 147, 148, 152, 157, 168, 171, 196, 222, 228, 252, 259, 266, 294, 296, 314, 333, 342, 392, 399, 441, 444, 456, 471, 504, 518, 532, 588, 628, 666, 684, 703, 777, 798, 882, 888, 931, 942, 1036, 1064, 1099, 1176, 1197, 1256, 1332, 1368, 1406, 1413, 1554, 1596, 1764, 1813, 1862, 1884, 2072, 2109, 2198, 2331, 2394, 2664, 2793, 2812, 2826, 2983, 3108, 3192, 3297, 3528, 3626, 3724, 3768, 4218, 4396, 4662, 4788, 4921, 5439, 5586, 5624, 5652, 5809, 5966, 6216, 6327, 6594, 7252, 7448, 7693, 8379, 8436, 8792, 8949, 9324, 9576, 9842, 9891, 10878, 11172, 11304, 11618, 11932, 12654, 13188, 14504, 14763, 15386, 16317, 16758, 16872, 17427, 17898, 18648, 19684, 19782, 20881, 21756, 22344, 23079, 23236, 23864, 25308, 26376, 26847, 29526, 30772, 32634, 33516, 34447, 34854, 35796, 39368, 39564, 40663, 41762, 43512, 44289, 46158, 46472, 50616, 52281, 53694, 59052, 61544, 62643, 65268, 67032, 68894, 69237, 69708, 71592, 79128, 81326, 83524, 88578, 92316, 103341, 104562, 107388, 110371, 118104, 121989, 125286, 130536, 137788, 138474, 139416, 146167, 162652, 167048, 177156, 184632, 187929, 206682, 209124, 214776, 220742, 243978, 250572, 275576, 276948, 284641, 292334, 310023, 325304, 331113, 354312, 365967, 375858, 413364, 418248, 438501, 441484, 487956, 501144, 553896, 569282, 584668, 620046, 662226, 731934, 751716, 772597, 826728, 853923, 877002, 882968, 975912, 993339, 1138564, 1169336, 1240092, 1315503, 1324452, 1463868, 1503432, 1545194, 1707846, 1754004, 1986678, 2277128, 2317791, 2480184, 2561769, 2631006, 2648904, 2927736, 3090388, 3415692, 3508008, 3973356, 4635582, 5123538, 5262012, 5408179, 6180776, 6831384, 6953373, 7946712, 9271164, 10247076, 10524024, 10816358, 13906746, 16224537, 18542328, 20494152, 21632716, 27813492, 32449074, 43265432, 48673611, 55626984, 64898148, 97347222, 129796296, 194694444, 389388888]

約数ペア:

[(1, 389388888), (2, 194694444), (3, 129796296), (4, 97347222), (6, 64898148), (7, 55626984), (8, 48673611), (9, 43265432), (12, 32449074), (14, 27813492), (18, 21632716), (19, 20494152), (21, 18542328), (24, 16224537), (28, 13906746), (36, 10816358), (37, 10524024), (38, 10247076), (42, 9271164), (49, 7946712), (56, 6953373), (57, 6831384), (63, 6180776), (72, 5408179), (74, 5262012), (76, 5123538), (84, 4635582), (98, 3973356), (111, 3508008), (114, 3415692), (126, 3090388), (133, 2927736), (147, 2648904), (148, 2631006), (152, 2561769), (157, 2480184), (168, 2317791), (171, 2277128), (196, 1986678), (222, 1754004), (228, 1707846), (252, 1545194), (259, 1503432), (266, 1463868), (294, 1324452), (296, 1315503), (314, 1240092), (333, 1169336), (342, 1138564), (392, 993339), (399, 975912), (441, 882968), (444, 877002), (456, 853923), (471, 826728), (504, 772597), (518, 751716), (532, 731934), (588, 662226), (628, 620046), (666, 584668), (684, 569282), (703, 553896), (777, 501144), (798, 487956), (882, 441484), (888, 438501), (931, 418248), (942, 413364), (1036, 375858), (1064, 365967), (1099, 354312), (1176, 331113), (1197, 325304), (1256, 310023), (1332, 292334), (1368, 284641), (1406, 276948), (1413, 275576), (1554, 250572), (1596, 243978), (1764, 220742), (1813, 214776), (1862, 209124), (1884, 206682), (2072, 187929), (2109, 184632), (2198, 177156), (2331, 167048), (2394, 162652), (2664, 146167), (2793, 139416), (2812, 138474), (2826, 137788), (2983, 130536), (3108, 125286), (3192, 121989), (3297, 118104), (3528, 110371), (3626, 107388), (3724, 104562), (3768, 103341), (4218, 92316), (4396, 88578), (4662, 83524), (4788, 81326), (4921, 79128), (5439, 71592), (5586, 69708), (5624, 69237), (5652, 68894), (5809, 67032), (5966, 65268), (6216, 62643), (6327, 61544), (6594, 59052), (7252, 53694), (7448, 52281), (7693, 50616), (8379, 46472), (8436, 46158), (8792, 44289), (8949, 43512), (9324, 41762), (9576, 40663), (9842, 39564), (9891, 39368), (10878, 35796), (11172, 34854), (11304, 34447), (11618, 33516), (11932, 32634), (12654, 30772), (13188, 29526), (14504, 26847), (14763, 26376), (15386, 25308), (16317, 23864), (16758, 23236), (16872, 23079), (17427, 22344), (17898, 21756), (18648, 20881), (19684, 19782)]