8920990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:604

約数の個数: 32

約数和(自身を含む): 17440416

約数和(自身を除く): 8519426

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 326, 421, 815, 842, 1630, 2105, 2119, 4210, 4238, 5473, 10595, 10946, 21190, 27365, 54730, 68623, 137246, 343115, 686230, 892099, 1784198, 4460495, 8920990]

約数ペア:

[(1, 8920990), (2, 4460495), (5, 1784198), (10, 892099), (13, 686230), (26, 343115), (65, 137246), (130, 68623), (163, 54730), (326, 27365), (421, 21190), (815, 10946), (842, 10595), (1630, 5473), (2105, 4238), (2119, 4210)]