389600685

素因数分解:

$3^5\times 5^1\times {\mathrm{320659}}^1$

素因数の和:320679

約数の個数: 24

約数和(自身を含む): 700321440

約数和(自身を除く): 310720755

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 320659, 961977, 1603295, 2885931, 4809885, 8657793, 14429655, 25973379, 43288965, 77920137, 129866895, 389600685]

約数ペア:

[(1, 389600685), (3, 129866895), (5, 77920137), (9, 43288965), (15, 25973379), (27, 14429655), (45, 8657793), (81, 4809885), (135, 2885931), (243, 1603295), (405, 961977), (1215, 320659)]