1390090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1$

素因数の和:91

約数の個数: 48

約数和(自身を含む): 2939832

約数和(自身を除く): 1549742

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 37, 65, 74, 85, 130, 170, 185, 221, 289, 370, 442, 481, 578, 629, 962, 1105, 1258, 1445, 2210, 2405, 2890, 3145, 3757, 4810, 6290, 7514, 8177, 10693, 16354, 18785, 21386, 37570, 40885, 53465, 81770, 106930, 139009, 278018, 695045, 1390090]

約数ペア:

[(1, 1390090), (2, 695045), (5, 278018), (10, 139009), (13, 106930), (17, 81770), (26, 53465), (34, 40885), (37, 37570), (65, 21386), (74, 18785), (85, 16354), (130, 10693), (170, 8177), (185, 7514), (221, 6290), (289, 4810), (370, 3757), (442, 3145), (481, 2890), (578, 2405), (629, 2210), (962, 1445), (1105, 1258)]