201433880

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{5051}}^1$

素因数の和:6059

約数の個数: 32

約数和(自身を含む): 453770640

約数和(自身を除く): 252336760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 3988, 4985, 5051, 7976, 9970, 10102, 19940, 20204, 25255, 39880, 40408, 50510, 101020, 202040, 5035847, 10071694, 20143388, 25179235, 40286776, 50358470, 100716940, 201433880]

約数ペア:

[(1, 201433880), (2, 100716940), (4, 50358470), (5, 40286776), (8, 25179235), (10, 20143388), (20, 10071694), (40, 5035847), (997, 202040), (1994, 101020), (3988, 50510), (4985, 40408), (5051, 39880), (7976, 25255), (9970, 20204), (10102, 19940)]