20891760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87049}}^1$

素因数の和:87065

約数の個数: 40

約数和(自身を含む): 64765200

約数和(自身を除く): 43873440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87049, 174098, 261147, 348196, 435245, 522294, 696392, 870490, 1044588, 1305735, 1392784, 1740980, 2089176, 2611470, 3481960, 4178352, 5222940, 6963920, 10445880, 20891760]

約数ペア:

[(1, 20891760), (2, 10445880), (3, 6963920), (4, 5222940), (5, 4178352), (6, 3481960), (8, 2611470), (10, 2089176), (12, 1740980), (15, 1392784), (16, 1305735), (20, 1044588), (24, 870490), (30, 696392), (40, 522294), (48, 435245), (60, 348196), (80, 261147), (120, 174098), (240, 87049)]