28817880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:83

約数の個数: 288

約数和(自身を含む): 112654800

約数和(自身を除く): 83836920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 29, 30, 35, 39, 40, 42, 49, 52, 56, 58, 60, 65, 70, 78, 84, 87, 91, 98, 104, 105, 116, 120, 130, 140, 145, 147, 156, 168, 169, 174, 182, 195, 196, 203, 210, 232, 245, 260, 273, 280, 290, 294, 312, 338, 348, 364, 377, 390, 392, 406, 420, 435, 455, 490, 507, 520, 546, 580, 588, 609, 637, 676, 696, 728, 735, 754, 780, 812, 840, 845, 870, 910, 980, 1014, 1015, 1092, 1131, 1160, 1176, 1183, 1218, 1274, 1352, 1365, 1421, 1470, 1508, 1560, 1624, 1690, 1740, 1820, 1885, 1911, 1960, 2028, 2030, 2184, 2262, 2366, 2436, 2535, 2548, 2639, 2730, 2842, 2940, 3016, 3045, 3185, 3380, 3480, 3549, 3640, 3770, 3822, 4056, 4060, 4263, 4524, 4732, 4872, 4901, 5070, 5096, 5278, 5460, 5655, 5684, 5880, 5915, 6090, 6370, 6760, 7098, 7105, 7540, 7644, 7917, 8120, 8281, 8526, 9048, 9464, 9555, 9802, 10140, 10556, 10920, 11310, 11368, 11830, 12180, 12740, 13195, 14196, 14210, 14703, 15080, 15288, 15834, 16562, 17052, 17745, 18473, 19110, 19604, 20280, 21112, 21315, 22620, 23660, 24360, 24505, 24843, 25480, 26390, 28392, 28420, 29406, 31668, 33124, 34104, 34307, 35490, 36946, 38220, 39208, 39585, 41405, 42630, 45240, 47320, 49010, 49686, 52780, 55419, 56840, 58812, 63336, 66248, 68614, 70980, 73515, 73892, 76440, 79170, 82810, 85260, 92365, 98020, 99372, 102921, 105560, 110838, 117624, 124215, 137228, 141960, 147030, 147784, 158340, 165620, 170520, 171535, 184730, 196040, 198744, 205842, 221676, 240149, 248430, 274456, 277095, 294060, 316680, 331240, 343070, 369460, 411684, 443352, 480298, 496860, 514605, 554190, 588120, 686140, 720447, 738920, 823368, 960596, 993720, 1029210, 1108380, 1200745, 1372280, 1440894, 1921192, 2058420, 2216760, 2401490, 2881788, 3602235, 4116840, 4802980, 5763576, 7204470, 9605960, 14408940, 28817880]

約数ペア:

[(1, 28817880), (2, 14408940), (3, 9605960), (4, 7204470), (5, 5763576), (6, 4802980), (7, 4116840), (8, 3602235), (10, 2881788), (12, 2401490), (13, 2216760), (14, 2058420), (15, 1921192), (20, 1440894), (21, 1372280), (24, 1200745), (26, 1108380), (28, 1029210), (29, 993720), (30, 960596), (35, 823368), (39, 738920), (40, 720447), (42, 686140), (49, 588120), (52, 554190), (56, 514605), (58, 496860), (60, 480298), (65, 443352), (70, 411684), (78, 369460), (84, 343070), (87, 331240), (91, 316680), (98, 294060), (104, 277095), (105, 274456), (116, 248430), (120, 240149), (130, 221676), (140, 205842), (145, 198744), (147, 196040), (156, 184730), (168, 171535), (169, 170520), (174, 165620), (182, 158340), (195, 147784), (196, 147030), (203, 141960), (210, 137228), (232, 124215), (245, 117624), (260, 110838), (273, 105560), (280, 102921), (290, 99372), (294, 98020), (312, 92365), (338, 85260), (348, 82810), (364, 79170), (377, 76440), (390, 73892), (392, 73515), (406, 70980), (420, 68614), (435, 66248), (455, 63336), (490, 58812), (507, 56840), (520, 55419), (546, 52780), (580, 49686), (588, 49010), (609, 47320), (637, 45240), (676, 42630), (696, 41405), (728, 39585), (735, 39208), (754, 38220), (780, 36946), (812, 35490), (840, 34307), (845, 34104), (870, 33124), (910, 31668), (980, 29406), (1014, 28420), (1015, 28392), (1092, 26390), (1131, 25480), (1160, 24843), (1176, 24505), (1183, 24360), (1218, 23660), (1274, 22620), (1352, 21315), (1365, 21112), (1421, 20280), (1470, 19604), (1508, 19110), (1560, 18473), (1624, 17745), (1690, 17052), (1740, 16562), (1820, 15834), (1885, 15288), (1911, 15080), (1960, 14703), (2028, 14210), (2030, 14196), (2184, 13195), (2262, 12740), (2366, 12180), (2436, 11830), (2535, 11368), (2548, 11310), (2639, 10920), (2730, 10556), (2842, 10140), (2940, 9802), (3016, 9555), (3045, 9464), (3185, 9048), (3380, 8526), (3480, 8281), (3549, 8120), (3640, 7917), (3770, 7644), (3822, 7540), (4056, 7105), (4060, 7098), (4263, 6760), (4524, 6370), (4732, 6090), (4872, 5915), (4901, 5880), (5070, 5684), (5096, 5655), (5278, 5460)]