20258175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 39140352

約数和(自身を除く): 18882177

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 47, 75, 105, 141, 175, 235, 329, 525, 705, 821, 987, 1175, 1645, 2463, 3525, 4105, 4935, 5747, 8225, 12315, 17241, 20525, 24675, 28735, 38587, 61575, 86205, 115761, 143675, 192935, 270109, 431025, 578805, 810327, 964675, 1350545, 2894025, 4051635, 6752725, 20258175]

約数ペア:

[(1, 20258175), (3, 6752725), (5, 4051635), (7, 2894025), (15, 1350545), (21, 964675), (25, 810327), (35, 578805), (47, 431025), (75, 270109), (105, 192935), (141, 143675), (175, 115761), (235, 86205), (329, 61575), (525, 38587), (705, 28735), (821, 24675), (987, 20525), (1175, 17241), (1645, 12315), (2463, 8225), (3525, 5747), (4105, 4935)]