64114840

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3919}}^1$

素因数の和:4339

約数の個数: 32

約数和(自身を含む): 144648000

約数和(自身を除く): 80533160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 3919, 4090, 7838, 8180, 15676, 16360, 19595, 31352, 39190, 78380, 156760, 1602871, 3205742, 6411484, 8014355, 12822968, 16028710, 32057420, 64114840]

約数ペア:

[(1, 64114840), (2, 32057420), (4, 16028710), (5, 12822968), (8, 8014355), (10, 6411484), (20, 3205742), (40, 1602871), (409, 156760), (818, 78380), (1636, 39190), (2045, 31352), (3272, 19595), (3919, 16360), (4090, 15676), (7838, 8180)]