66687280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{75781}}^1$

素因数の和:75805

約数の個数: 40

約数和(自身を含む): 169145424

約数和(自身を除く): 102458144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 75781, 151562, 303124, 378905, 606248, 757810, 833591, 1212496, 1515620, 1667182, 3031240, 3334364, 4167955, 6062480, 6668728, 8335910, 13337456, 16671820, 33343640, 66687280]

約数ペア:

[(1, 66687280), (2, 33343640), (4, 16671820), (5, 13337456), (8, 8335910), (10, 6668728), (11, 6062480), (16, 4167955), (20, 3334364), (22, 3031240), (40, 1667182), (44, 1515620), (55, 1212496), (80, 833591), (88, 757810), (110, 606248), (176, 378905), (220, 303124), (440, 151562), (880, 75781)]