203467760

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{2551}}^1$

素因数の和:3561

約数の個数: 40

約数和(自身を含む): 473722656

約数和(自身を除く): 270254896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997, 1994, 2551, 3988, 4985, 5102, 7976, 9970, 10204, 12755, 15952, 19940, 20408, 25510, 39880, 40816, 51020, 79760, 102040, 204080, 2543347, 5086694, 10173388, 12716735, 20346776, 25433470, 40693552, 50866940, 101733880, 203467760]

約数ペア:

[(1, 203467760), (2, 101733880), (4, 50866940), (5, 40693552), (8, 25433470), (10, 20346776), (16, 12716735), (20, 10173388), (40, 5086694), (80, 2543347), (997, 204080), (1994, 102040), (2551, 79760), (3988, 51020), (4985, 40816), (5102, 39880), (7976, 25510), (9970, 20408), (10204, 19940), (12755, 15952)]