90281660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644869}}^1$

素因数の和:644885

約数の個数: 24

約数和(自身を含む): 216676320

約数和(自身を除く): 126394660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644869, 1289738, 2579476, 3224345, 4514083, 6448690, 9028166, 12897380, 18056332, 22570415, 45140830, 90281660]

約数ペア:

[(1, 90281660), (2, 45140830), (4, 22570415), (5, 18056332), (7, 12897380), (10, 9028166), (14, 6448690), (20, 4514083), (28, 3224345), (35, 2579476), (70, 1289738), (140, 644869)]