6420640

素因数分解:

$2^5\times 5^1\times {\mathrm{40129}}^1$

素因数の和:40144

約数の個数: 24

約数和(自身を含む): 15169140

約数和(自身を除く): 8748500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 40129, 80258, 160516, 200645, 321032, 401290, 642064, 802580, 1284128, 1605160, 3210320, 6420640]

約数ペア:

[(1, 6420640), (2, 3210320), (4, 1605160), (5, 1284128), (8, 802580), (10, 642064), (16, 401290), (20, 321032), (32, 200645), (40, 160516), (80, 80258), (160, 40129)]