90798820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{648563}}^1$

素因数の和:648579

約数の個数: 24

約数和(自身を含む): 217917504

約数和(自身を除く): 127118684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 648563, 1297126, 2594252, 3242815, 4539941, 6485630, 9079882, 12971260, 18159764, 22699705, 45399410, 90798820]

約数ペア:

[(1, 90798820), (2, 45399410), (4, 22699705), (5, 18159764), (7, 12971260), (10, 9079882), (14, 6485630), (20, 4539941), (28, 3242815), (35, 2594252), (70, 1297126), (140, 648563)]