399680350

素因数分解:

$2^1\times 5^2\times {\mathrm{281}}^1\times {\mathrm{28447}}^1$

素因数の和:28740

約数の個数: 24

約数和(自身を含む): 746077248

約数和(自身を除く): 346396898

約数列:

[1, 2, 5, 10, 25, 50, 281, 562, 1405, 2810, 7025, 14050, 28447, 56894, 142235, 284470, 711175, 1422350, 7993607, 15987214, 39968035, 79936070, 199840175, 399680350]

約数ペア:

[(1, 399680350), (2, 199840175), (5, 79936070), (10, 39968035), (25, 15987214), (50, 7993607), (281, 1422350), (562, 711175), (1405, 284470), (2810, 142235), (7025, 56894), (14050, 28447)]