68237560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{409}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 159112800

約数和(自身を除く): 90875240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 97, 172, 194, 215, 344, 388, 409, 430, 485, 776, 818, 860, 970, 1636, 1720, 1940, 2045, 3272, 3880, 4090, 4171, 8180, 8342, 16360, 16684, 17587, 20855, 33368, 35174, 39673, 41710, 70348, 79346, 83420, 87935, 140696, 158692, 166840, 175870, 198365, 317384, 351740, 396730, 703480, 793460, 1586920, 1705939, 3411878, 6823756, 8529695, 13647512, 17059390, 34118780, 68237560]

約数ペア:

[(1, 68237560), (2, 34118780), (4, 17059390), (5, 13647512), (8, 8529695), (10, 6823756), (20, 3411878), (40, 1705939), (43, 1586920), (86, 793460), (97, 703480), (172, 396730), (194, 351740), (215, 317384), (344, 198365), (388, 175870), (409, 166840), (430, 158692), (485, 140696), (776, 87935), (818, 83420), (860, 79346), (970, 70348), (1636, 41710), (1720, 39673), (1940, 35174), (2045, 33368), (3272, 20855), (3880, 17587), (4090, 16684), (4171, 16360), (8180, 8342)]