25451140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:853

約数の個数: 72

約数和(自身を含む): 63345240

約数和(自身を除く): 37894100

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 121, 130, 143, 220, 242, 260, 286, 484, 572, 605, 715, 809, 1210, 1430, 1573, 1618, 2420, 2860, 3146, 3236, 4045, 6292, 7865, 8090, 8899, 10517, 15730, 16180, 17798, 21034, 31460, 35596, 42068, 44495, 52585, 88990, 97889, 105170, 115687, 177980, 195778, 210340, 231374, 391556, 462748, 489445, 578435, 978890, 1156870, 1272557, 1957780, 2313740, 2545114, 5090228, 6362785, 12725570, 25451140]

約数ペア:

[(1, 25451140), (2, 12725570), (4, 6362785), (5, 5090228), (10, 2545114), (11, 2313740), (13, 1957780), (20, 1272557), (22, 1156870), (26, 978890), (44, 578435), (52, 489445), (55, 462748), (65, 391556), (110, 231374), (121, 210340), (130, 195778), (143, 177980), (220, 115687), (242, 105170), (260, 97889), (286, 88990), (484, 52585), (572, 44495), (605, 42068), (715, 35596), (809, 31460), (1210, 21034), (1430, 17798), (1573, 16180), (1618, 15730), (2420, 10517), (2860, 8899), (3146, 8090), (3236, 7865), (4045, 6292)]