81124720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27407}}^1$

素因数の和:27457

約数の個数: 40

約数和(自身を含む): 193719744

約数和(自身を除く): 112595024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 27407, 54814, 109628, 137035, 219256, 274070, 438512, 548140, 1014059, 1096280, 2028118, 2192560, 4056236, 5070295, 8112472, 10140590, 16224944, 20281180, 40562360, 81124720]

約数ペア:

[(1, 81124720), (2, 40562360), (4, 20281180), (5, 16224944), (8, 10140590), (10, 8112472), (16, 5070295), (20, 4056236), (37, 2192560), (40, 2028118), (74, 1096280), (80, 1014059), (148, 548140), (185, 438512), (296, 274070), (370, 219256), (592, 137035), (740, 109628), (1480, 54814), (2960, 27407)]