78196820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{300757}}^1$

素因数の和:300779

約数の個数: 24

約数和(自身を含む): 176845704

約数和(自身を除く): 98648884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 300757, 601514, 1203028, 1503785, 3007570, 3909841, 6015140, 7819682, 15639364, 19549205, 39098410, 78196820]

約数ペア:

[(1, 78196820), (2, 39098410), (4, 19549205), (5, 15639364), (10, 7819682), (13, 6015140), (20, 3909841), (26, 3007570), (52, 1503785), (65, 1203028), (130, 601514), (260, 300757)]