204512980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31081}}^1$

素因数の和:31144

約数の個数: 48

約数和(自身を含む): 501290496

約数和(自身を除く): 296777516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 31081, 62162, 124324, 155405, 217567, 310810, 435134, 621620, 870268, 1087835, 1460807, 2175670, 2921614, 4351340, 5843228, 7304035, 10225649, 14608070, 20451298, 29216140, 40902596, 51128245, 102256490, 204512980]

約数ペア:

[(1, 204512980), (2, 102256490), (4, 51128245), (5, 40902596), (7, 29216140), (10, 20451298), (14, 14608070), (20, 10225649), (28, 7304035), (35, 5843228), (47, 4351340), (70, 2921614), (94, 2175670), (140, 1460807), (188, 1087835), (235, 870268), (329, 621620), (470, 435134), (658, 310810), (940, 217567), (1316, 155405), (1645, 124324), (3290, 62162), (6580, 31081)]