71994015

素因数分解:

$3^4\times 5^1\times {\mathrm{177763}}^1$

素因数の和:177780

約数の個数: 20

約数和(自身を含む): 129056664

約数和(自身を除く): 57062649

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 177763, 533289, 888815, 1599867, 2666445, 4799601, 7999335, 14398803, 23998005, 71994015]

約数ペア:

[(1, 71994015), (3, 23998005), (5, 14398803), (9, 7999335), (15, 4799601), (27, 2666445), (45, 1599867), (81, 888815), (135, 533289), (405, 177763)]