401570055

素因数分解:

$3^4\times 5^1\times {\mathrm{991531}}^1$

素因数の和:991548

約数の個数: 20

約数和(自身を含む): 719852232

約数和(自身を除く): 318282177

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 991531, 2974593, 4957655, 8923779, 14872965, 26771337, 44618895, 80314011, 133856685, 401570055]

約数ペア:

[(1, 401570055), (3, 133856685), (5, 80314011), (9, 44618895), (15, 26771337), (27, 14872965), (45, 8923779), (81, 4957655), (135, 2974593), (405, 991531)]