72093640

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7013}}^1$

素因数の和:7281

約数の個数: 32

約数和(自身を含む): 162865080

約数和(自身を除く): 90771440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 7013, 10280, 14026, 28052, 35065, 56104, 70130, 140260, 280520, 1802341, 3604682, 7209364, 9011705, 14418728, 18023410, 36046820, 72093640]

約数ペア:

[(1, 72093640), (2, 36046820), (4, 18023410), (5, 14418728), (8, 9011705), (10, 7209364), (20, 3604682), (40, 1802341), (257, 280520), (514, 140260), (1028, 70130), (1285, 56104), (2056, 35065), (2570, 28052), (5140, 14026), (7013, 10280)]