208780960

素因数分解:

$2^5\times 5^1\times {\mathrm{383}}^1\times {\mathrm{3407}}^1$

素因数の和:3805

約数の個数: 48

約数和(自身を含む): 494678016

約数和(自身を除く): 285897056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 383, 766, 1532, 1915, 3064, 3407, 3830, 6128, 6814, 7660, 12256, 13628, 15320, 17035, 27256, 30640, 34070, 54512, 61280, 68140, 109024, 136280, 272560, 545120, 1304881, 2609762, 5219524, 6524405, 10439048, 13048810, 20878096, 26097620, 41756192, 52195240, 104390480, 208780960]

約数ペア:

[(1, 208780960), (2, 104390480), (4, 52195240), (5, 41756192), (8, 26097620), (10, 20878096), (16, 13048810), (20, 10439048), (32, 6524405), (40, 5219524), (80, 2609762), (160, 1304881), (383, 545120), (766, 272560), (1532, 136280), (1915, 109024), (3064, 68140), (3407, 61280), (3830, 54512), (6128, 34070), (6814, 30640), (7660, 27256), (12256, 17035), (13628, 15320)]