81906890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{7591}}^1$

素因数の和:7694

約数の個数: 32

約数和(自身を含む): 160707456

約数和(自身を除く): 78800566

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 2158, 5395, 7591, 10790, 15182, 37955, 75910, 98683, 197366, 493415, 630053, 986830, 1260106, 3150265, 6300530, 8190689, 16381378, 40953445, 81906890]

約数ペア:

[(1, 81906890), (2, 40953445), (5, 16381378), (10, 8190689), (13, 6300530), (26, 3150265), (65, 1260106), (83, 986830), (130, 630053), (166, 493415), (415, 197366), (830, 98683), (1079, 75910), (2158, 37955), (5395, 15182), (7591, 10790)]