77811980

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{23297}}^1$

素因数の和:23473

約数の個数: 24

約数和(自身を含む): 164390688

約数和(自身を除く): 86578708

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 23297, 46594, 93188, 116485, 232970, 465940, 3890599, 7781198, 15562396, 19452995, 38905990, 77811980]

約数ペア:

[(1, 77811980), (2, 38905990), (4, 19452995), (5, 15562396), (10, 7781198), (20, 3890599), (167, 465940), (334, 232970), (668, 116485), (835, 93188), (1670, 46594), (3340, 23297)]