201221780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{529531}}^1$

素因数の和:529559

約数の個数: 24

約数和(自身を含む): 444806880

約数和(自身を除く): 243585100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 529531, 1059062, 2118124, 2647655, 5295310, 10061089, 10590620, 20122178, 40244356, 50305445, 100610890, 201221780]

約数ペア:

[(1, 201221780), (2, 100610890), (4, 50305445), (5, 40244356), (10, 20122178), (19, 10590620), (20, 10061089), (38, 5295310), (76, 2647655), (95, 2118124), (190, 1059062), (380, 529531)]