2497980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 7741440

約数和(自身を除く): 5243460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 31, 34, 51, 60, 62, 68, 79, 85, 93, 102, 124, 155, 158, 170, 186, 204, 237, 255, 310, 316, 340, 372, 395, 465, 474, 510, 527, 620, 790, 930, 948, 1020, 1054, 1185, 1343, 1580, 1581, 1860, 2108, 2370, 2449, 2635, 2686, 3162, 4029, 4740, 4898, 5270, 5372, 6324, 6715, 7347, 7905, 8058, 9796, 10540, 12245, 13430, 14694, 15810, 16116, 20145, 24490, 26860, 29388, 31620, 36735, 40290, 41633, 48980, 73470, 80580, 83266, 124899, 146940, 166532, 208165, 249798, 416330, 499596, 624495, 832660, 1248990, 2497980]

約数ペア:

[(1, 2497980), (2, 1248990), (3, 832660), (4, 624495), (5, 499596), (6, 416330), (10, 249798), (12, 208165), (15, 166532), (17, 146940), (20, 124899), (30, 83266), (31, 80580), (34, 73470), (51, 48980), (60, 41633), (62, 40290), (68, 36735), (79, 31620), (85, 29388), (93, 26860), (102, 24490), (124, 20145), (155, 16116), (158, 15810), (170, 14694), (186, 13430), (204, 12245), (237, 10540), (255, 9796), (310, 8058), (316, 7905), (340, 7347), (372, 6715), (395, 6324), (465, 5372), (474, 5270), (510, 4898), (527, 4740), (620, 4029), (790, 3162), (930, 2686), (948, 2635), (1020, 2449), (1054, 2370), (1185, 2108), (1343, 1860), (1580, 1581)]