19806390

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{673}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 53380800

約数和(自身を除く): 33574410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 109, 135, 218, 270, 327, 545, 654, 673, 981, 1090, 1346, 1635, 1962, 2019, 2943, 3270, 3365, 4038, 4905, 5886, 6057, 6730, 9810, 10095, 12114, 14715, 18171, 20190, 29430, 30285, 36342, 60570, 73357, 90855, 146714, 181710, 220071, 366785, 440142, 660213, 733570, 1100355, 1320426, 1980639, 2200710, 3301065, 3961278, 6602130, 9903195, 19806390]

約数ペア:

[(1, 19806390), (2, 9903195), (3, 6602130), (5, 3961278), (6, 3301065), (9, 2200710), (10, 1980639), (15, 1320426), (18, 1100355), (27, 733570), (30, 660213), (45, 440142), (54, 366785), (90, 220071), (109, 181710), (135, 146714), (218, 90855), (270, 73357), (327, 60570), (545, 36342), (654, 30285), (673, 29430), (981, 20190), (1090, 18171), (1346, 14715), (1635, 12114), (1962, 10095), (2019, 9810), (2943, 6730), (3270, 6057), (3365, 5886), (4038, 4905)]