51815225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2447}}^1$

素因数の和:2486

約数の個数: 36

約数和(自身を含む): 80744832

約数和(自身を除く): 28929607

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 121, 175, 275, 385, 605, 847, 1925, 2447, 3025, 4235, 12235, 17129, 21175, 26917, 61175, 85645, 134585, 188419, 296087, 428225, 672925, 942095, 1480435, 2072609, 4710475, 7402175, 10363045, 51815225]

約数ペア:

[(1, 51815225), (5, 10363045), (7, 7402175), (11, 4710475), (25, 2072609), (35, 1480435), (55, 942095), (77, 672925), (121, 428225), (175, 296087), (275, 188419), (385, 134585), (605, 85645), (847, 61175), (1925, 26917), (2447, 21175), (3025, 17129), (4235, 12235)]