156779237860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1997}}^1\times {\mathrm{560767}}^1$

素因数の和:562780

約数の個数: 48

約数和(自身を含む): 376459259904

約数和(自身を除く): 219680022044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1997, 3994, 7988, 9985, 13979, 19970, 27958, 39940, 55916, 69895, 139790, 279580, 560767, 1121534, 2243068, 2803835, 3925369, 5607670, 7850738, 11215340, 15701476, 19626845, 39253690, 78507380, 1119851699, 2239703398, 4479406796, 5599258495, 7838961893, 11198516990, 15677923786, 22397033980, 31355847572, 39194809465, 78389618930, 156779237860]

約数ペア:

[(1, 156779237860), (2, 78389618930), (4, 39194809465), (5, 31355847572), (7, 22397033980), (10, 15677923786), (14, 11198516990), (20, 7838961893), (28, 5599258495), (35, 4479406796), (70, 2239703398), (140, 1119851699), (1997, 78507380), (3994, 39253690), (7988, 19626845), (9985, 15701476), (13979, 11215340), (19970, 7850738), (27958, 5607670), (39940, 3925369), (55916, 2803835), (69895, 2243068), (139790, 1121534), (279580, 560767)]