20118175

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1493}}^1$

素因数の和:1528

約数の個数: 36

約数和(自身を含む): 31678776

約数和(自身を除く): 11560601

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 245, 275, 385, 539, 1225, 1493, 1925, 2695, 7465, 10451, 13475, 16423, 37325, 52255, 73157, 82115, 114961, 261275, 365785, 410575, 574805, 804727, 1828925, 2874025, 4023635, 20118175]

約数ペア:

[(1, 20118175), (5, 4023635), (7, 2874025), (11, 1828925), (25, 804727), (35, 574805), (49, 410575), (55, 365785), (77, 261275), (175, 114961), (245, 82115), (275, 73157), (385, 52255), (539, 37325), (1225, 16423), (1493, 13475), (1925, 10451), (2695, 7465)]