128097400

素因数分解:

$2^3\times 5^2\times {\mathrm{727}}^1\times {\mathrm{881}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 298574640

約数和(自身を除く): 170477240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 727, 881, 1454, 1762, 2908, 3524, 3635, 4405, 5816, 7048, 7270, 8810, 14540, 17620, 18175, 22025, 29080, 35240, 36350, 44050, 72700, 88100, 145400, 176200, 640487, 1280974, 2561948, 3202435, 5123896, 6404870, 12809740, 16012175, 25619480, 32024350, 64048700, 128097400]

約数ペア:

[(1, 128097400), (2, 64048700), (4, 32024350), (5, 25619480), (8, 16012175), (10, 12809740), (20, 6404870), (25, 5123896), (40, 3202435), (50, 2561948), (100, 1280974), (200, 640487), (727, 176200), (881, 145400), (1454, 88100), (1762, 72700), (2908, 44050), (3524, 36350), (3635, 35240), (4405, 29080), (5816, 22025), (7048, 18175), (7270, 17620), (8810, 14540)]