12810875

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^4$

素因数の和:66

約数の個数: 40

約数和(自身を含む): 20099040

約数和(自身を除く): 7288165

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 125, 175, 275, 385, 605, 847, 875, 1331, 1375, 1925, 3025, 4235, 6655, 9317, 9625, 14641, 15125, 21175, 33275, 46585, 73205, 102487, 105875, 166375, 232925, 366025, 512435, 1164625, 1830125, 2562175, 12810875]

約数ペア:

[(1, 12810875), (5, 2562175), (7, 1830125), (11, 1164625), (25, 512435), (35, 366025), (55, 232925), (77, 166375), (121, 105875), (125, 102487), (175, 73205), (275, 46585), (385, 33275), (605, 21175), (847, 15125), (875, 14641), (1331, 9625), (1375, 9317), (1925, 6655), (3025, 4235)]