398837656

素因数分解:

$2^3\times 7^3\times {\mathrm{145349}}^1$

素因数の和:145376

約数の個数: 32

約数和(自身を含む): 872100000

約数和(自身を除く): 473262344

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 145349, 290698, 581396, 1017443, 1162792, 2034886, 4069772, 7122101, 8139544, 14244202, 28488404, 49854707, 56976808, 99709414, 199418828, 398837656]

約数ペア:

[(1, 398837656), (2, 199418828), (4, 99709414), (7, 56976808), (8, 49854707), (14, 28488404), (28, 14244202), (49, 8139544), (56, 7122101), (98, 4069772), (196, 2034886), (343, 1162792), (392, 1017443), (686, 581396), (1372, 290698), (2744, 145349)]