9912920

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3137}}^1$

素因数の和:3227

約数の個数: 32

約数和(自身を含む): 22593600

約数和(自身を除く): 12680680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3137, 3160, 6274, 12548, 15685, 25096, 31370, 62740, 125480, 247823, 495646, 991292, 1239115, 1982584, 2478230, 4956460, 9912920]

約数ペア:

[(1, 9912920), (2, 4956460), (4, 2478230), (5, 1982584), (8, 1239115), (10, 991292), (20, 495646), (40, 247823), (79, 125480), (158, 62740), (316, 31370), (395, 25096), (632, 15685), (790, 12548), (1580, 6274), (3137, 3160)]