19721800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{14087}}^1$

素因数の和:14110

約数の個数: 48

約数和(自身を含む): 52407360

約数和(自身を除く): 32685560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 14087, 28174, 56348, 70435, 98609, 112696, 140870, 197218, 281740, 352175, 394436, 493045, 563480, 704350, 788872, 986090, 1408700, 1972180, 2465225, 2817400, 3944360, 4930450, 9860900, 19721800]

約数ペア:

[(1, 19721800), (2, 9860900), (4, 4930450), (5, 3944360), (7, 2817400), (8, 2465225), (10, 1972180), (14, 1408700), (20, 986090), (25, 788872), (28, 704350), (35, 563480), (40, 493045), (50, 394436), (56, 352175), (70, 281740), (100, 197218), (140, 140870), (175, 112696), (200, 98609), (280, 70435), (350, 56348), (700, 28174), (1400, 14087)]