638978770

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1\times {\mathrm{1487}}^1$

素因数の和:2034

約数の個数: 32

約数和(自身を含む): 1165425408

約数和(自身を除く): 526446638

約数列:

[1, 2, 5, 10, 97, 194, 443, 485, 886, 970, 1487, 2215, 2974, 4430, 7435, 14870, 42971, 85942, 144239, 214855, 288478, 429710, 658741, 721195, 1317482, 1442390, 3293705, 6587410, 63897877, 127795754, 319489385, 638978770]

約数ペア:

[(1, 638978770), (2, 319489385), (5, 127795754), (10, 63897877), (97, 6587410), (194, 3293705), (443, 1442390), (485, 1317482), (886, 721195), (970, 658741), (1487, 429710), (2215, 288478), (2974, 214855), (4430, 144239), (7435, 85942), (14870, 42971)]