20247075

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^2\times {\mathrm{107}}^1$

素因数の和:181

約数の個数: 54

約数和(自身を含む): 37909404

約数和(自身を除く): 17662329

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 107, 145, 225, 261, 321, 435, 535, 725, 841, 963, 1305, 1605, 2175, 2523, 2675, 3103, 4205, 4815, 6525, 7569, 8025, 9309, 12615, 15515, 21025, 24075, 27927, 37845, 46545, 63075, 77575, 89987, 139635, 189225, 232725, 269961, 449935, 698175, 809883, 1349805, 2249675, 4049415, 6749025, 20247075]

約数ペア:

[(1, 20247075), (3, 6749025), (5, 4049415), (9, 2249675), (15, 1349805), (25, 809883), (29, 698175), (45, 449935), (75, 269961), (87, 232725), (107, 189225), (145, 139635), (225, 89987), (261, 77575), (321, 63075), (435, 46545), (535, 37845), (725, 27927), (841, 24075), (963, 21025), (1305, 15515), (1605, 12615), (2175, 9309), (2523, 8025), (2675, 7569), (3103, 6525), (4205, 4815)]