201211990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{2874457}}^1$

素因数の和:2874471

約数の個数: 16

約数和(自身を含む): 413921952

約数和(自身を除く): 212709962

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 2874457, 5748914, 14372285, 20121199, 28744570, 40242398, 100605995, 201211990]

約数ペア:

[(1, 201211990), (2, 100605995), (5, 40242398), (7, 28744570), (10, 20121199), (14, 14372285), (35, 5748914), (70, 2874457)]