64742840

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{3511}}^1$

素因数の和:3983

約数の個数: 32

約数和(自身を含む): 146028960

約数和(自身を除く): 81286120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3511, 3688, 4610, 7022, 9220, 14044, 17555, 18440, 28088, 35110, 70220, 140440, 1618571, 3237142, 6474284, 8092855, 12948568, 16185710, 32371420, 64742840]

約数ペア:

[(1, 64742840), (2, 32371420), (4, 16185710), (5, 12948568), (8, 8092855), (10, 6474284), (20, 3237142), (40, 1618571), (461, 140440), (922, 70220), (1844, 35110), (2305, 28088), (3511, 18440), (3688, 17555), (4610, 14044), (7022, 9220)]