85815855

素因数分解:

$3^4\times 5^1\times {\mathrm{211891}}^1$

素因数の和:211908

約数の個数: 20

約数和(自身を含む): 153833592

約数和(自身を除く): 68017737

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 211891, 635673, 1059455, 1907019, 3178365, 5721057, 9535095, 17163171, 28605285, 85815855]

約数ペア:

[(1, 85815855), (3, 28605285), (5, 17163171), (9, 9535095), (15, 5721057), (27, 3178365), (45, 1907019), (81, 1059455), (135, 635673), (405, 211891)]