4005565

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 5106816

約数和(自身を除く): 1101251

約数列:

[1, 5, 23, 61, 115, 305, 571, 1403, 2855, 7015, 13133, 34831, 65665, 174155, 801113, 4005565]

約数ペア:

[(1, 4005565), (5, 801113), (23, 174155), (61, 65665), (115, 34831), (305, 13133), (571, 7015), (1403, 2855)]