395248520

素因数分解:

$2^3\times 5^1\times {\mathrm{563}}^1\times {\mathrm{17551}}^1$

素因数の和:18125

約数の個数: 32

約数和(自身を含む): 890939520

約数和(自身を除く): 495691000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 563, 1126, 2252, 2815, 4504, 5630, 11260, 17551, 22520, 35102, 70204, 87755, 140408, 175510, 351020, 702040, 9881213, 19762426, 39524852, 49406065, 79049704, 98812130, 197624260, 395248520]

約数ペア:

[(1, 395248520), (2, 197624260), (4, 98812130), (5, 79049704), (8, 49406065), (10, 39524852), (20, 19762426), (40, 9881213), (563, 702040), (1126, 351020), (2252, 175510), (2815, 140408), (4504, 87755), (5630, 70204), (11260, 35102), (17551, 22520)]