64193740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{246899}}^1$

素因数の和:246921

約数の個数: 24

約数和(自身を含む): 145177200

約数和(自身を除く): 80983460

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 246899, 493798, 987596, 1234495, 2468990, 3209687, 4937980, 6419374, 12838748, 16048435, 32096870, 64193740]

約数ペア:

[(1, 64193740), (2, 32096870), (4, 16048435), (5, 12838748), (10, 6419374), (13, 4937980), (20, 3209687), (26, 2468990), (52, 1234495), (65, 987596), (130, 493798), (260, 246899)]