66914680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{677}}^1$

素因数の和:1048

約数の個数: 64

約数和(自身を含む): 172808640

約数和(自身を除く): 105893960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 353, 677, 706, 1354, 1412, 1765, 2471, 2708, 2824, 3385, 3530, 4739, 4942, 5416, 6770, 7060, 9478, 9884, 12355, 13540, 14120, 18956, 19768, 23695, 24710, 27080, 37912, 47390, 49420, 94780, 98840, 189560, 238981, 477962, 955924, 1194905, 1672867, 1911848, 2389810, 3345734, 4779620, 6691468, 8364335, 9559240, 13382936, 16728670, 33457340, 66914680]

約数ペア:

[(1, 66914680), (2, 33457340), (4, 16728670), (5, 13382936), (7, 9559240), (8, 8364335), (10, 6691468), (14, 4779620), (20, 3345734), (28, 2389810), (35, 1911848), (40, 1672867), (56, 1194905), (70, 955924), (140, 477962), (280, 238981), (353, 189560), (677, 98840), (706, 94780), (1354, 49420), (1412, 47390), (1765, 37912), (2471, 27080), (2708, 24710), (2824, 23695), (3385, 19768), (3530, 18956), (4739, 14120), (4942, 13540), (5416, 12355), (6770, 9884), (7060, 9478)]