13216980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31469}}^1$

素因数の和:31488

約数の個数: 48

約数和(自身を含む): 42295680

約数和(自身を除く): 29078700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 31469, 62938, 94407, 125876, 157345, 188814, 220283, 314690, 377628, 440566, 472035, 629380, 660849, 881132, 944070, 1101415, 1321698, 1888140, 2202830, 2643396, 3304245, 4405660, 6608490, 13216980]

約数ペア:

[(1, 13216980), (2, 6608490), (3, 4405660), (4, 3304245), (5, 2643396), (6, 2202830), (7, 1888140), (10, 1321698), (12, 1101415), (14, 944070), (15, 881132), (20, 660849), (21, 629380), (28, 472035), (30, 440566), (35, 377628), (42, 314690), (60, 220283), (70, 188814), (84, 157345), (105, 125876), (140, 94407), (210, 62938), (420, 31469)]