281125240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{541}}^1\times {\mathrm{1181}}^1$

素因数の和:1744

約数の個数: 64

約数和(自身を含む): 691895520

約数和(自身を除く): 410770280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 541, 1082, 1181, 2164, 2362, 2705, 4328, 4724, 5410, 5905, 5951, 9448, 10820, 11810, 11902, 12991, 21640, 23620, 23804, 25982, 29755, 47240, 47608, 51964, 59510, 64955, 103928, 119020, 129910, 238040, 259820, 519640, 638921, 1277842, 2555684, 3194605, 5111368, 6389210, 7028131, 12778420, 14056262, 25556840, 28112524, 35140655, 56225048, 70281310, 140562620, 281125240]

約数ペア:

[(1, 281125240), (2, 140562620), (4, 70281310), (5, 56225048), (8, 35140655), (10, 28112524), (11, 25556840), (20, 14056262), (22, 12778420), (40, 7028131), (44, 6389210), (55, 5111368), (88, 3194605), (110, 2555684), (220, 1277842), (440, 638921), (541, 519640), (1082, 259820), (1181, 238040), (2164, 129910), (2362, 119020), (2705, 103928), (4328, 64955), (4724, 59510), (5410, 51964), (5905, 47608), (5951, 47240), (9448, 29755), (10820, 25982), (11810, 23804), (11902, 23620), (12991, 21640)]