257544920

素因数分解:

$2^3\times 5^1\times {\mathrm{2063}}^1\times {\mathrm{3121}}^1$

素因数の和:5195

約数の個数: 32

約数和(自身を含む): 579942720

約数和(自身を除く): 322397800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2063, 3121, 4126, 6242, 8252, 10315, 12484, 15605, 16504, 20630, 24968, 31210, 41260, 62420, 82520, 124840, 6438623, 12877246, 25754492, 32193115, 51508984, 64386230, 128772460, 257544920]

約数ペア:

[(1, 257544920), (2, 128772460), (4, 64386230), (5, 51508984), (8, 32193115), (10, 25754492), (20, 12877246), (40, 6438623), (2063, 124840), (3121, 82520), (4126, 62420), (6242, 41260), (8252, 31210), (10315, 24968), (12484, 20630), (15605, 16504)]