639630818

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{631}}^1$

素因数の和:890

約数の個数: 32

約数和(自身を含む): 1000086912

約数和(自身を除く): 360456094

約数列:

[1, 2, 53, 73, 106, 131, 146, 262, 631, 1262, 3869, 6943, 7738, 9563, 13886, 19126, 33443, 46063, 66886, 82661, 92126, 165322, 506839, 1013678, 2441339, 4381033, 4882678, 6034253, 8762066, 12068506, 319815409, 639630818]

約数ペア:

[(1, 639630818), (2, 319815409), (53, 12068506), (73, 8762066), (106, 6034253), (131, 4882678), (146, 4381033), (262, 2441339), (631, 1013678), (1262, 506839), (3869, 165322), (6943, 92126), (7738, 82661), (9563, 66886), (13886, 46063), (19126, 33443)]