19591020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{857}}^1$

素因数の和:999

約数の個数: 72

約数和(自身を含む): 59963904

約数和(自身を除く): 40372884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 857, 1143, 1270, 1524, 1714, 1905, 2286, 2540, 2571, 3428, 3810, 4285, 4572, 5142, 5715, 7620, 7713, 8570, 10284, 11430, 12855, 15426, 17140, 22860, 25710, 30852, 38565, 51420, 77130, 108839, 154260, 217678, 326517, 435356, 544195, 653034, 979551, 1088390, 1306068, 1632585, 1959102, 2176780, 3265170, 3918204, 4897755, 6530340, 9795510, 19591020]

約数ペア:

[(1, 19591020), (2, 9795510), (3, 6530340), (4, 4897755), (5, 3918204), (6, 3265170), (9, 2176780), (10, 1959102), (12, 1632585), (15, 1306068), (18, 1088390), (20, 979551), (30, 653034), (36, 544195), (45, 435356), (60, 326517), (90, 217678), (127, 154260), (180, 108839), (254, 77130), (381, 51420), (508, 38565), (635, 30852), (762, 25710), (857, 22860), (1143, 17140), (1270, 15426), (1524, 12855), (1714, 11430), (1905, 10284), (2286, 8570), (2540, 7713), (2571, 7620), (3428, 5715), (3810, 5142), (4285, 4572)]