9920720

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{461}}^1$

素因数の和:743

約数の個数: 40

約数和(自身を含む): 23201640

約数和(自身を除く): 13280920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 461, 538, 922, 1076, 1345, 1844, 2152, 2305, 2690, 3688, 4304, 4610, 5380, 7376, 9220, 10760, 18440, 21520, 36880, 124009, 248018, 496036, 620045, 992072, 1240090, 1984144, 2480180, 4960360, 9920720]

約数ペア:

[(1, 9920720), (2, 4960360), (4, 2480180), (5, 1984144), (8, 1240090), (10, 992072), (16, 620045), (20, 496036), (40, 248018), (80, 124009), (269, 36880), (461, 21520), (538, 18440), (922, 10760), (1076, 9220), (1345, 7376), (1844, 5380), (2152, 4610), (2305, 4304), (2690, 3688)]