64793720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{52253}}^1$

素因数の和:52295

約数の個数: 32

約数和(自身を含む): 150491520

約数和(自身を除く): 85697800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 52253, 104506, 209012, 261265, 418024, 522530, 1045060, 1619843, 2090120, 3239686, 6479372, 8099215, 12958744, 16198430, 32396860, 64793720]

約数ペア:

[(1, 64793720), (2, 32396860), (4, 16198430), (5, 12958744), (8, 8099215), (10, 6479372), (20, 3239686), (31, 2090120), (40, 1619843), (62, 1045060), (124, 522530), (155, 418024), (248, 261265), (310, 209012), (620, 104506), (1240, 52253)]