64878815

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1\times {\mathrm{653}}^1$

素因数の和:1330

約数の個数: 16

約数和(自身を含む): 80614656

約数和(自身を除く): 15735841

約数列:

[1, 5, 31, 155, 641, 653, 3205, 3265, 19871, 20243, 99355, 101215, 418573, 2092865, 12975763, 64878815]

約数ペア:

[(1, 64878815), (5, 12975763), (31, 2092865), (155, 418573), (641, 101215), (653, 99355), (3205, 20243), (3265, 19871)]