28781640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2579}}^1$

素因数の和:2627

約数の個数: 96

約数和(自身を含む): 96595200

約数和(自身を除く): 67813560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 155, 180, 186, 248, 279, 310, 360, 372, 465, 558, 620, 744, 930, 1116, 1240, 1395, 1860, 2232, 2579, 2790, 3720, 5158, 5580, 7737, 10316, 11160, 12895, 15474, 20632, 23211, 25790, 30948, 38685, 46422, 51580, 61896, 77370, 79949, 92844, 103160, 116055, 154740, 159898, 185688, 232110, 239847, 309480, 319796, 399745, 464220, 479694, 639592, 719541, 799490, 928440, 959388, 1199235, 1439082, 1598980, 1918776, 2398470, 2878164, 3197960, 3597705, 4796940, 5756328, 7195410, 9593880, 14390820, 28781640]

約数ペア:

[(1, 28781640), (2, 14390820), (3, 9593880), (4, 7195410), (5, 5756328), (6, 4796940), (8, 3597705), (9, 3197960), (10, 2878164), (12, 2398470), (15, 1918776), (18, 1598980), (20, 1439082), (24, 1199235), (30, 959388), (31, 928440), (36, 799490), (40, 719541), (45, 639592), (60, 479694), (62, 464220), (72, 399745), (90, 319796), (93, 309480), (120, 239847), (124, 232110), (155, 185688), (180, 159898), (186, 154740), (248, 116055), (279, 103160), (310, 92844), (360, 79949), (372, 77370), (465, 61896), (558, 51580), (620, 46422), (744, 38685), (930, 30948), (1116, 25790), (1240, 23211), (1395, 20632), (1860, 15474), (2232, 12895), (2579, 11160), (2790, 10316), (3720, 7737), (5158, 5580)]