64390005

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16447}}^1$

素因数の和:16490

約数の個数: 32

約数和(自身を含む): 118425600

約数和(自身を除く): 54035595

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 16447, 49341, 82235, 148023, 246705, 444069, 476963, 740115, 1430889, 2220345, 2384815, 4292667, 7154445, 12878001, 21463335, 64390005]

約数ペア:

[(1, 64390005), (3, 21463335), (5, 12878001), (9, 7154445), (15, 4292667), (27, 2384815), (29, 2220345), (45, 1430889), (87, 740115), (135, 476963), (145, 444069), (261, 246705), (435, 148023), (783, 82235), (1305, 49341), (3915, 16447)]