664840120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2374429}}^1$

素因数の和:2374447

約数の個数: 32

約数和(自身を含む): 1709589600

約数和(自身を除く): 1044749480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2374429, 4748858, 9497716, 11872145, 16621003, 18995432, 23744290, 33242006, 47488580, 66484012, 83105015, 94977160, 132968024, 166210030, 332420060, 664840120]

約数ペア:

[(1, 664840120), (2, 332420060), (4, 166210030), (5, 132968024), (7, 94977160), (8, 83105015), (10, 66484012), (14, 47488580), (20, 33242006), (28, 23744290), (35, 18995432), (40, 16621003), (56, 11872145), (70, 9497716), (140, 4748858), (280, 2374429)]