72212080

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2251}}^1$

素因数の和:2665

約数の個数: 40

約数和(自身を含む): 168386544

約数和(自身を除く): 96174464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 2251, 3208, 4010, 4502, 6416, 8020, 9004, 11255, 16040, 18008, 22510, 32080, 36016, 45020, 90040, 180080, 902651, 1805302, 3610604, 4513255, 7221208, 9026510, 14442416, 18053020, 36106040, 72212080]

約数ペア:

[(1, 72212080), (2, 36106040), (4, 18053020), (5, 14442416), (8, 9026510), (10, 7221208), (16, 4513255), (20, 3610604), (40, 1805302), (80, 902651), (401, 180080), (802, 90040), (1604, 45020), (2005, 36016), (2251, 32080), (3208, 22510), (4010, 18008), (4502, 16040), (6416, 11255), (8020, 9004)]