66365360

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4211}}^1$

素因数の和:4421

約数の個数: 40

約数和(自身を含む): 155119536

約数和(自身を除く): 88754176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 4211, 7880, 8422, 15760, 16844, 21055, 33688, 42110, 67376, 84220, 168440, 336880, 829567, 1659134, 3318268, 4147835, 6636536, 8295670, 13273072, 16591340, 33182680, 66365360]

約数ペア:

[(1, 66365360), (2, 33182680), (4, 16591340), (5, 13273072), (8, 8295670), (10, 6636536), (16, 4147835), (20, 3318268), (40, 1659134), (80, 829567), (197, 336880), (394, 168440), (788, 84220), (985, 67376), (1576, 42110), (1970, 33688), (3152, 21055), (3940, 16844), (4211, 15760), (7880, 8422)]