28578420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:116

約数の個数: 240

約数和(自身を含む): 102453120

約数和(自身を除く): 73874700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 27, 30, 36, 39, 45, 46, 52, 54, 59, 60, 65, 69, 78, 81, 90, 92, 108, 115, 117, 118, 130, 135, 138, 156, 162, 177, 180, 195, 207, 230, 234, 236, 260, 270, 276, 295, 299, 324, 345, 351, 354, 390, 405, 414, 460, 468, 531, 540, 585, 590, 598, 621, 690, 702, 708, 767, 780, 810, 828, 885, 897, 1035, 1053, 1062, 1170, 1180, 1196, 1242, 1357, 1380, 1404, 1495, 1534, 1593, 1620, 1755, 1770, 1794, 1863, 2070, 2106, 2124, 2301, 2340, 2484, 2655, 2691, 2714, 2990, 3068, 3105, 3186, 3510, 3540, 3588, 3726, 3835, 4071, 4140, 4212, 4485, 4602, 4779, 5265, 5310, 5382, 5428, 5980, 6210, 6372, 6785, 6903, 7020, 7452, 7670, 7965, 8073, 8142, 8970, 9204, 9315, 9558, 10530, 10620, 10764, 11505, 12213, 12420, 13455, 13570, 13806, 15340, 15930, 16146, 16284, 17641, 17940, 18630, 19116, 20355, 20709, 21060, 23010, 23895, 24219, 24426, 26910, 27140, 27612, 31860, 32292, 34515, 35282, 36639, 37260, 40365, 40710, 41418, 46020, 47790, 48438, 48852, 52923, 53820, 61065, 62127, 69030, 70564, 73278, 80730, 81420, 82836, 88205, 95580, 96876, 103545, 105846, 109917, 121095, 122130, 124254, 138060, 146556, 158769, 161460, 176410, 183195, 207090, 211692, 219834, 242190, 244260, 248508, 264615, 310635, 317538, 352820, 366390, 414180, 439668, 476307, 484380, 529230, 549585, 621270, 635076, 732780, 793845, 952614, 1058460, 1099170, 1242540, 1428921, 1587690, 1905228, 2198340, 2381535, 2857842, 3175380, 4763070, 5715684, 7144605, 9526140, 14289210, 28578420]

約数ペア:

[(1, 28578420), (2, 14289210), (3, 9526140), (4, 7144605), (5, 5715684), (6, 4763070), (9, 3175380), (10, 2857842), (12, 2381535), (13, 2198340), (15, 1905228), (18, 1587690), (20, 1428921), (23, 1242540), (26, 1099170), (27, 1058460), (30, 952614), (36, 793845), (39, 732780), (45, 635076), (46, 621270), (52, 549585), (54, 529230), (59, 484380), (60, 476307), (65, 439668), (69, 414180), (78, 366390), (81, 352820), (90, 317538), (92, 310635), (108, 264615), (115, 248508), (117, 244260), (118, 242190), (130, 219834), (135, 211692), (138, 207090), (156, 183195), (162, 176410), (177, 161460), (180, 158769), (195, 146556), (207, 138060), (230, 124254), (234, 122130), (236, 121095), (260, 109917), (270, 105846), (276, 103545), (295, 96876), (299, 95580), (324, 88205), (345, 82836), (351, 81420), (354, 80730), (390, 73278), (405, 70564), (414, 69030), (460, 62127), (468, 61065), (531, 53820), (540, 52923), (585, 48852), (590, 48438), (598, 47790), (621, 46020), (690, 41418), (702, 40710), (708, 40365), (767, 37260), (780, 36639), (810, 35282), (828, 34515), (885, 32292), (897, 31860), (1035, 27612), (1053, 27140), (1062, 26910), (1170, 24426), (1180, 24219), (1196, 23895), (1242, 23010), (1357, 21060), (1380, 20709), (1404, 20355), (1495, 19116), (1534, 18630), (1593, 17940), (1620, 17641), (1755, 16284), (1770, 16146), (1794, 15930), (1863, 15340), (2070, 13806), (2106, 13570), (2124, 13455), (2301, 12420), (2340, 12213), (2484, 11505), (2655, 10764), (2691, 10620), (2714, 10530), (2990, 9558), (3068, 9315), (3105, 9204), (3186, 8970), (3510, 8142), (3540, 8073), (3588, 7965), (3726, 7670), (3835, 7452), (4071, 7020), (4140, 6903), (4212, 6785), (4485, 6372), (4602, 6210), (4779, 5980), (5265, 5428), (5310, 5382)]