405939235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{1493}}^1$

素因数の和:1647

約数の個数: 32

約数和(自身を含む): 542142720

約数和(自身を除く): 136203485

約数列:

[1, 5, 13, 47, 65, 89, 235, 445, 611, 1157, 1493, 3055, 4183, 5785, 7465, 19409, 20915, 54379, 70171, 97045, 132877, 271895, 350855, 664385, 912223, 1727401, 4561115, 6245219, 8637005, 31226095, 81187847, 405939235]

約数ペア:

[(1, 405939235), (5, 81187847), (13, 31226095), (47, 8637005), (65, 6245219), (89, 4561115), (235, 1727401), (445, 912223), (611, 664385), (1157, 350855), (1493, 271895), (3055, 132877), (4183, 97045), (5785, 70171), (7465, 54379), (19409, 20915)]