20145825

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{12791}}^1$

素因数の和:12814

約数の個数: 36

約数和(自身を含む): 41241408

約数和(自身を除く): 21095583

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 12791, 38373, 63955, 89537, 115119, 191865, 268611, 319775, 447685, 575595, 805833, 959325, 1343055, 2238425, 2877975, 4029165, 6715275, 20145825]

約数ペア:

[(1, 20145825), (3, 6715275), (5, 4029165), (7, 2877975), (9, 2238425), (15, 1343055), (21, 959325), (25, 805833), (35, 575595), (45, 447685), (63, 319775), (75, 268611), (105, 191865), (175, 115119), (225, 89537), (315, 63955), (525, 38373), (1575, 12791)]