64686760

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{22153}}^1$

素因数の和:22237

約数の個数: 32

約数和(自身を含む): 147545640

約数和(自身を除く): 82858880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 22153, 44306, 88612, 110765, 177224, 221530, 443060, 886120, 1617169, 3234338, 6468676, 8085845, 12937352, 16171690, 32343380, 64686760]

約数ペア:

[(1, 64686760), (2, 32343380), (4, 16171690), (5, 12937352), (8, 8085845), (10, 6468676), (20, 3234338), (40, 1617169), (73, 886120), (146, 443060), (292, 221530), (365, 177224), (584, 110765), (730, 88612), (1460, 44306), (2920, 22153)]