718437040

素因数分解:

$2^4\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{6967}}^1$

素因数の和:8269

約数の個数: 40

約数和(自身を含む): 1671901920

約数和(自身を除く): 953464880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1289, 2578, 5156, 6445, 6967, 10312, 12890, 13934, 20624, 25780, 27868, 34835, 51560, 55736, 69670, 103120, 111472, 139340, 278680, 557360, 8980463, 17960926, 35921852, 44902315, 71843704, 89804630, 143687408, 179609260, 359218520, 718437040]

約数ペア:

[(1, 718437040), (2, 359218520), (4, 179609260), (5, 143687408), (8, 89804630), (10, 71843704), (16, 44902315), (20, 35921852), (40, 17960926), (80, 8980463), (1289, 557360), (2578, 278680), (5156, 139340), (6445, 111472), (6967, 103120), (10312, 69670), (12890, 55736), (13934, 51560), (20624, 34835), (25780, 27868)]