81341890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{7129}}^1$

素因数の和:7306

約数の個数: 32

約数和(自身を含む): 168382080

約数和(自身を除く): 87040190

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 163, 326, 815, 1141, 1630, 2282, 5705, 7129, 11410, 14258, 35645, 49903, 71290, 99806, 249515, 499030, 1162027, 2324054, 5810135, 8134189, 11620270, 16268378, 40670945, 81341890]

約数ペア:

[(1, 81341890), (2, 40670945), (5, 16268378), (7, 11620270), (10, 8134189), (14, 5810135), (35, 2324054), (70, 1162027), (163, 499030), (326, 249515), (815, 99806), (1141, 71290), (1630, 49903), (2282, 35645), (5705, 14258), (7129, 11410)]