68778860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3851}}^1$

素因数の和:3926

約数の個数: 48

約数和(自身を含む): 155312640

約数和(自身を除く): 86533780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1786, 3572, 3851, 4465, 7702, 8930, 15404, 17860, 19255, 38510, 73169, 77020, 146338, 180997, 292676, 361994, 365845, 723988, 731690, 904985, 1463380, 1809970, 3438943, 3619940, 6877886, 13755772, 17194715, 34389430, 68778860]

約数ペア:

[(1, 68778860), (2, 34389430), (4, 17194715), (5, 13755772), (10, 6877886), (19, 3619940), (20, 3438943), (38, 1809970), (47, 1463380), (76, 904985), (94, 731690), (95, 723988), (188, 365845), (190, 361994), (235, 292676), (380, 180997), (470, 146338), (893, 77020), (940, 73169), (1786, 38510), (3572, 19255), (3851, 17860), (4465, 15404), (7702, 8930)]