28400580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:310

約数の個数: 144

約数和(自身を含む): 94938480

約数和(自身を除く): 66537900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 53, 60, 65, 78, 90, 106, 117, 130, 156, 159, 180, 195, 212, 229, 234, 260, 265, 318, 390, 458, 468, 477, 530, 585, 636, 687, 689, 780, 795, 916, 954, 1060, 1145, 1170, 1374, 1378, 1590, 1908, 2061, 2067, 2290, 2340, 2385, 2748, 2756, 2977, 3180, 3435, 3445, 4122, 4134, 4580, 4770, 5954, 6201, 6870, 6890, 8244, 8268, 8931, 9540, 10305, 10335, 11908, 12137, 12402, 13740, 13780, 14885, 17862, 20610, 20670, 24274, 24804, 26793, 29770, 31005, 35724, 36411, 41220, 41340, 44655, 48548, 53586, 59540, 60685, 62010, 72822, 89310, 107172, 109233, 121370, 124020, 133965, 145644, 157781, 178620, 182055, 218466, 242740, 267930, 315562, 364110, 436932, 473343, 535860, 546165, 631124, 728220, 788905, 946686, 1092330, 1420029, 1577810, 1893372, 2184660, 2366715, 2840058, 3155620, 4733430, 5680116, 7100145, 9466860, 14200290, 28400580]

約数ペア:

[(1, 28400580), (2, 14200290), (3, 9466860), (4, 7100145), (5, 5680116), (6, 4733430), (9, 3155620), (10, 2840058), (12, 2366715), (13, 2184660), (15, 1893372), (18, 1577810), (20, 1420029), (26, 1092330), (30, 946686), (36, 788905), (39, 728220), (45, 631124), (52, 546165), (53, 535860), (60, 473343), (65, 436932), (78, 364110), (90, 315562), (106, 267930), (117, 242740), (130, 218466), (156, 182055), (159, 178620), (180, 157781), (195, 145644), (212, 133965), (229, 124020), (234, 121370), (260, 109233), (265, 107172), (318, 89310), (390, 72822), (458, 62010), (468, 60685), (477, 59540), (530, 53586), (585, 48548), (636, 44655), (687, 41340), (689, 41220), (780, 36411), (795, 35724), (916, 31005), (954, 29770), (1060, 26793), (1145, 24804), (1170, 24274), (1374, 20670), (1378, 20610), (1590, 17862), (1908, 14885), (2061, 13780), (2067, 13740), (2290, 12402), (2340, 12137), (2385, 11908), (2748, 10335), (2756, 10305), (2977, 9540), (3180, 8931), (3435, 8268), (3445, 8244), (4122, 6890), (4134, 6870), (4580, 6201), (4770, 5954)]