81478670

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{12791}}^1$

素因数の和:12825

約数の個数: 48

約数和(自身を含む): 183744288

約数和(自身を除く): 102265618

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 3185, 6370, 12791, 25582, 63955, 89537, 127910, 166283, 179074, 332566, 447685, 626759, 831415, 895370, 1163981, 1253518, 1662830, 2327962, 3133795, 5819905, 6267590, 8147867, 11639810, 16295734, 40739335, 81478670]

約数ペア:

[(1, 81478670), (2, 40739335), (5, 16295734), (7, 11639810), (10, 8147867), (13, 6267590), (14, 5819905), (26, 3133795), (35, 2327962), (49, 1662830), (65, 1253518), (70, 1163981), (91, 895370), (98, 831415), (130, 626759), (182, 447685), (245, 332566), (455, 179074), (490, 166283), (637, 127910), (910, 89537), (1274, 63955), (3185, 25582), (6370, 12791)]