64816505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1693}}^1$

素因数の和:1761

約数の個数: 32

約数和(自身を含む): 91069440

約数和(自身を除く): 26252935

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 247, 403, 589, 1235, 1693, 2015, 2945, 7657, 8465, 22009, 32167, 38285, 52483, 110045, 160835, 262415, 418171, 682279, 997177, 2090855, 3411395, 4985885, 12963301, 64816505]

約数ペア:

[(1, 64816505), (5, 12963301), (13, 4985885), (19, 3411395), (31, 2090855), (65, 997177), (95, 682279), (155, 418171), (247, 262415), (403, 160835), (589, 110045), (1235, 52483), (1693, 38285), (2015, 32167), (2945, 22009), (7657, 8465)]