30885705

素因数分解:

$3^4\times 5^1\times {\mathrm{76261}}^1$

素因数の和:76278

約数の個数: 20

約数和(自身を含む): 55366212

約数和(自身を除く): 24480507

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 76261, 228783, 381305, 686349, 1143915, 2059047, 3431745, 6177141, 10295235, 30885705]

約数ペア:

[(1, 30885705), (3, 10295235), (5, 6177141), (9, 3431745), (15, 2059047), (27, 1143915), (45, 686349), (81, 381305), (135, 228783), (405, 76261)]