20179286816

素因数分解:

$2^5\times {\mathrm{13}}^3\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:324

約数の個数: 192

約数和(自身を含む): 45600952320

約数和(自身を除く): 25421665504

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 47, 52, 62, 94, 104, 124, 169, 188, 197, 208, 248, 338, 376, 394, 403, 416, 496, 611, 676, 752, 788, 806, 992, 1222, 1352, 1457, 1504, 1576, 1612, 2197, 2444, 2561, 2704, 2914, 3152, 3224, 4394, 4888, 5122, 5239, 5408, 5828, 6107, 6304, 6448, 7943, 8788, 9259, 9776, 10244, 10478, 11656, 12214, 12896, 15886, 17576, 18518, 18941, 19552, 20488, 20956, 23312, 24428, 31772, 33293, 35152, 37036, 37882, 40976, 41912, 46624, 48856, 63544, 66586, 68107, 70304, 74072, 75764, 79391, 81952, 83824, 97712, 103259, 120367, 127088, 133172, 136214, 148144, 151528, 158782, 167648, 195424, 206518, 240734, 246233, 254176, 266344, 272428, 287029, 296288, 303056, 317564, 413036, 432809, 481468, 492466, 532688, 544856, 574058, 606112, 635128, 826072, 865618, 962936, 984932, 1032083, 1065376, 1089712, 1148116, 1270256, 1564771, 1652144, 1731236, 1925872, 1969864, 2064166, 2179424, 2296232, 2540512, 3129542, 3201029, 3304288, 3462472, 3731377, 3851744, 3939728, 4128332, 4592464, 6259084, 6402058, 6924944, 7462754, 7879456, 8256664, 9184928, 12518168, 12804116, 13417079, 13849888, 14925508, 16513328, 20342023, 25036336, 25608232, 26834158, 29851016, 33026656, 40684046, 48507901, 50072672, 51216464, 53668316, 59702032, 81368092, 97015802, 102432928, 107336632, 119404064, 162736184, 194031604, 214673264, 325472368, 388063208, 429346528, 630602713, 650944736, 776126416, 1261205426, 1552252832, 2522410852, 5044821704, 10089643408, 20179286816]

約数ペア:

[(1, 20179286816), (2, 10089643408), (4, 5044821704), (8, 2522410852), (13, 1552252832), (16, 1261205426), (26, 776126416), (31, 650944736), (32, 630602713), (47, 429346528), (52, 388063208), (62, 325472368), (94, 214673264), (104, 194031604), (124, 162736184), (169, 119404064), (188, 107336632), (197, 102432928), (208, 97015802), (248, 81368092), (338, 59702032), (376, 53668316), (394, 51216464), (403, 50072672), (416, 48507901), (496, 40684046), (611, 33026656), (676, 29851016), (752, 26834158), (788, 25608232), (806, 25036336), (992, 20342023), (1222, 16513328), (1352, 14925508), (1457, 13849888), (1504, 13417079), (1576, 12804116), (1612, 12518168), (2197, 9184928), (2444, 8256664), (2561, 7879456), (2704, 7462754), (2914, 6924944), (3152, 6402058), (3224, 6259084), (4394, 4592464), (4888, 4128332), (5122, 3939728), (5239, 3851744), (5408, 3731377), (5828, 3462472), (6107, 3304288), (6304, 3201029), (6448, 3129542), (7943, 2540512), (8788, 2296232), (9259, 2179424), (9776, 2064166), (10244, 1969864), (10478, 1925872), (11656, 1731236), (12214, 1652144), (12896, 1564771), (15886, 1270256), (17576, 1148116), (18518, 1089712), (18941, 1065376), (19552, 1032083), (20488, 984932), (20956, 962936), (23312, 865618), (24428, 826072), (31772, 635128), (33293, 606112), (35152, 574058), (37036, 544856), (37882, 532688), (40976, 492466), (41912, 481468), (46624, 432809), (48856, 413036), (63544, 317564), (66586, 303056), (68107, 296288), (70304, 287029), (74072, 272428), (75764, 266344), (79391, 254176), (81952, 246233), (83824, 240734), (97712, 206518), (103259, 195424), (120367, 167648), (127088, 158782), (133172, 151528), (136214, 148144)]