2782720

素因数分解:

$2^9\times 5^1\times {\mathrm{1087}}^1$

素因数の和:1110

約数の個数: 40

約数和(自身を含む): 6678144

約数和(自身を除く): 3895424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1087, 1280, 2174, 2560, 4348, 5435, 8696, 10870, 17392, 21740, 34784, 43480, 69568, 86960, 139136, 173920, 278272, 347840, 556544, 695680, 1391360, 2782720]

約数ペア:

[(1, 2782720), (2, 1391360), (4, 695680), (5, 556544), (8, 347840), (10, 278272), (16, 173920), (20, 139136), (32, 86960), (40, 69568), (64, 43480), (80, 34784), (128, 21740), (160, 17392), (256, 10870), (320, 8696), (512, 5435), (640, 4348), (1087, 2560), (1280, 2174)]