649281980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1047229}}^1$

素因数の和:1047269

約数の個数: 24

約数和(自身を含む): 1407477120

約数和(自身を除く): 758195140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1047229, 2094458, 4188916, 5236145, 10472290, 20944580, 32464099, 64928198, 129856396, 162320495, 324640990, 649281980]

約数ペア:

[(1, 649281980), (2, 324640990), (4, 162320495), (5, 129856396), (10, 64928198), (20, 32464099), (31, 20944580), (62, 10472290), (124, 5236145), (155, 4188916), (310, 2094458), (620, 1047229)]