131213140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{3821}}^1$

素因数の和:3948

約数の個数: 48

約数和(自身を含む): 294722064

約数和(自身を除く): 163508924

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 101, 170, 202, 340, 404, 505, 1010, 1717, 2020, 3434, 3821, 6868, 7642, 8585, 15284, 17170, 19105, 34340, 38210, 64957, 76420, 129914, 259828, 324785, 385921, 649570, 771842, 1299140, 1543684, 1929605, 3859210, 6560657, 7718420, 13121314, 26242628, 32803285, 65606570, 131213140]

約数ペア:

[(1, 131213140), (2, 65606570), (4, 32803285), (5, 26242628), (10, 13121314), (17, 7718420), (20, 6560657), (34, 3859210), (68, 1929605), (85, 1543684), (101, 1299140), (170, 771842), (202, 649570), (340, 385921), (404, 324785), (505, 259828), (1010, 129914), (1717, 76420), (2020, 64957), (3434, 38210), (3821, 34340), (6868, 19105), (7642, 17170), (8585, 15284)]