20168925

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{937}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 39080832

約数和(自身を除く): 18911907

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 75, 105, 123, 175, 205, 287, 525, 615, 861, 937, 1025, 1435, 2811, 3075, 4305, 4685, 6559, 7175, 14055, 19677, 21525, 23425, 32795, 38417, 70275, 98385, 115251, 163975, 192085, 268919, 491925, 576255, 806757, 960425, 1344595, 2881275, 4033785, 6722975, 20168925]

約数ペア:

[(1, 20168925), (3, 6722975), (5, 4033785), (7, 2881275), (15, 1344595), (21, 960425), (25, 806757), (35, 576255), (41, 491925), (75, 268919), (105, 192085), (123, 163975), (175, 115251), (205, 98385), (287, 70275), (525, 38417), (615, 32795), (861, 23425), (937, 21525), (1025, 19677), (1435, 14055), (2811, 7175), (3075, 6559), (4305, 4685)]