557722160

素因数分解:

$2^4\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{3491}}^1$

素因数の和:5501

約数の個数: 40

約数和(自身を含む): 1297724976

約数和(自身を除く): 740002816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1997, 3491, 3994, 6982, 7988, 9985, 13964, 15976, 17455, 19970, 27928, 31952, 34910, 39940, 55856, 69820, 79880, 139640, 159760, 279280, 6971527, 13943054, 27886108, 34857635, 55772216, 69715270, 111544432, 139430540, 278861080, 557722160]

約数ペア:

[(1, 557722160), (2, 278861080), (4, 139430540), (5, 111544432), (8, 69715270), (10, 55772216), (16, 34857635), (20, 27886108), (40, 13943054), (80, 6971527), (1997, 279280), (3491, 159760), (3994, 139640), (6982, 79880), (7988, 69820), (9985, 55856), (13964, 39940), (15976, 34910), (17455, 31952), (19970, 27928)]