640932335

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{401}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 813905280

約数和(自身を除く): 172972945

約数列:

[1, 5, 29, 73, 145, 151, 365, 401, 755, 2005, 2117, 4379, 10585, 11023, 11629, 21895, 29273, 55115, 58145, 60551, 146365, 302755, 319667, 848917, 1598335, 1755979, 4244585, 4420223, 8779895, 22101115, 128186467, 640932335]

約数ペア:

[(1, 640932335), (5, 128186467), (29, 22101115), (73, 8779895), (145, 4420223), (151, 4244585), (365, 1755979), (401, 1598335), (755, 848917), (2005, 319667), (2117, 302755), (4379, 146365), (10585, 60551), (11023, 58145), (11629, 55115), (21895, 29273)]