31561690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 61625952

約数和(自身を除く): 30064262

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 163, 170, 289, 326, 335, 578, 670, 815, 1139, 1445, 1630, 2278, 2771, 2890, 5542, 5695, 10921, 11390, 13855, 19363, 21842, 27710, 38726, 47107, 54605, 94214, 96815, 109210, 185657, 193630, 235535, 371314, 471070, 928285, 1856570, 3156169, 6312338, 15780845, 31561690]

約数ペア:

[(1, 31561690), (2, 15780845), (5, 6312338), (10, 3156169), (17, 1856570), (34, 928285), (67, 471070), (85, 371314), (134, 235535), (163, 193630), (170, 185657), (289, 109210), (326, 96815), (335, 94214), (578, 54605), (670, 47107), (815, 38726), (1139, 27710), (1445, 21842), (1630, 19363), (2278, 13855), (2771, 11390), (2890, 10921), (5542, 5695)]