96815980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 207900000

約数和(自身を除く): 111084020

約数列:

[1, 2, 4, 5, 10, 20, 89, 109, 178, 218, 356, 436, 445, 499, 545, 890, 998, 1090, 1780, 1996, 2180, 2495, 4990, 9701, 9980, 19402, 38804, 44411, 48505, 54391, 88822, 97010, 108782, 177644, 194020, 217564, 222055, 271955, 444110, 543910, 888220, 1087820, 4840799, 9681598, 19363196, 24203995, 48407990, 96815980]

約数ペア:

[(1, 96815980), (2, 48407990), (4, 24203995), (5, 19363196), (10, 9681598), (20, 4840799), (89, 1087820), (109, 888220), (178, 543910), (218, 444110), (356, 271955), (436, 222055), (445, 217564), (499, 194020), (545, 177644), (890, 108782), (998, 97010), (1090, 88822), (1780, 54391), (1996, 48505), (2180, 44411), (2495, 38804), (4990, 19402), (9701, 9980)]