664866460

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1\times {\mathrm{1499}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 1422288000

約数和(自身を除く): 757421540

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 331, 335, 662, 670, 1324, 1340, 1499, 1655, 2998, 3310, 5996, 6620, 7495, 14990, 22177, 29980, 44354, 88708, 100433, 110885, 200866, 221770, 401732, 443540, 496169, 502165, 992338, 1004330, 1984676, 2008660, 2480845, 4961690, 9923380, 33243323, 66486646, 132973292, 166216615, 332433230, 664866460]

約数ペア:

[(1, 664866460), (2, 332433230), (4, 166216615), (5, 132973292), (10, 66486646), (20, 33243323), (67, 9923380), (134, 4961690), (268, 2480845), (331, 2008660), (335, 1984676), (662, 1004330), (670, 992338), (1324, 502165), (1340, 496169), (1499, 443540), (1655, 401732), (2998, 221770), (3310, 200866), (5996, 110885), (6620, 100433), (7495, 88708), (14990, 44354), (22177, 29980)]