31237992040

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{715811}}^1$

素因数の和:716913

約数の個数: 32

約数和(自身を含む): 70350003360

約数和(自身を除く): 39112011320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 2182, 4364, 5455, 8728, 10910, 21820, 43640, 715811, 1431622, 2863244, 3579055, 5726488, 7158110, 14316220, 28632440, 780949801, 1561899602, 3123799204, 3904749005, 6247598408, 7809498010, 15618996020, 31237992040]

約数ペア:

[(1, 31237992040), (2, 15618996020), (4, 7809498010), (5, 6247598408), (8, 3904749005), (10, 3123799204), (20, 1561899602), (40, 780949801), (1091, 28632440), (2182, 14316220), (4364, 7158110), (5455, 5726488), (8728, 3579055), (10910, 2863244), (21820, 1431622), (43640, 715811)]