18618160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21157}}^1$

素因数の和:21181

約数の個数: 40

約数和(自身を含む): 47224656

約数和(自身を除く): 28606496

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21157, 42314, 84628, 105785, 169256, 211570, 232727, 338512, 423140, 465454, 846280, 930908, 1163635, 1692560, 1861816, 2327270, 3723632, 4654540, 9309080, 18618160]

約数ペア:

[(1, 18618160), (2, 9309080), (4, 4654540), (5, 3723632), (8, 2327270), (10, 1861816), (11, 1692560), (16, 1163635), (20, 930908), (22, 846280), (40, 465454), (44, 423140), (55, 338512), (80, 232727), (88, 211570), (110, 169256), (176, 105785), (220, 84628), (440, 42314), (880, 21157)]