398834680

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{343823}}^1$

素因数の和:343863

約数の個数: 32

約数和(自身を含む): 928324800

約数和(自身を除く): 529490120

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 343823, 687646, 1375292, 1719115, 2750584, 3438230, 6876460, 9970867, 13752920, 19941734, 39883468, 49854335, 79766936, 99708670, 199417340, 398834680]

約数ペア:

[(1, 398834680), (2, 199417340), (4, 99708670), (5, 79766936), (8, 49854335), (10, 39883468), (20, 19941734), (29, 13752920), (40, 9970867), (58, 6876460), (116, 3438230), (145, 2750584), (232, 1719115), (290, 1375292), (580, 687646), (1160, 343823)]