81516720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339653}}^1$

素因数の和:339669

約数の個数: 40

約数和(自身を含む): 252702576

約数和(自身を除く): 171185856

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339653, 679306, 1018959, 1358612, 1698265, 2037918, 2717224, 3396530, 4075836, 5094795, 5434448, 6793060, 8151672, 10189590, 13586120, 16303344, 20379180, 27172240, 40758360, 81516720]

約数ペア:

[(1, 81516720), (2, 40758360), (3, 27172240), (4, 20379180), (5, 16303344), (6, 13586120), (8, 10189590), (10, 8151672), (12, 6793060), (15, 5434448), (16, 5094795), (20, 4075836), (24, 3396530), (30, 2717224), (40, 2037918), (48, 1698265), (60, 1358612), (80, 1018959), (120, 679306), (240, 339653)]