20540990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{367}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 38551680

約数和(自身を除く): 18010690

約数列:

[1, 2, 5, 10, 29, 58, 145, 193, 290, 367, 386, 734, 965, 1835, 1930, 3670, 5597, 10643, 11194, 21286, 27985, 53215, 55970, 70831, 106430, 141662, 354155, 708310, 2054099, 4108198, 10270495, 20540990]

約数ペア:

[(1, 20540990), (2, 10270495), (5, 4108198), (10, 2054099), (29, 708310), (58, 354155), (145, 141662), (193, 106430), (290, 70831), (367, 55970), (386, 53215), (734, 27985), (965, 21286), (1835, 11194), (1930, 10643), (3670, 5597)]