71527280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81281}}^1$

素因数の和:81305

約数の個数: 40

約数和(自身を含む): 181421424

約数和(自身を除く): 109894144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 81281, 162562, 325124, 406405, 650248, 812810, 894091, 1300496, 1625620, 1788182, 3251240, 3576364, 4470455, 6502480, 7152728, 8940910, 14305456, 17881820, 35763640, 71527280]

約数ペア:

[(1, 71527280), (2, 35763640), (4, 17881820), (5, 14305456), (8, 8940910), (10, 7152728), (11, 6502480), (16, 4470455), (20, 3576364), (22, 3251240), (40, 1788182), (44, 1625620), (55, 1300496), (80, 894091), (88, 812810), (110, 650248), (176, 406405), (220, 325124), (440, 162562), (880, 81281)]