85401580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{20431}}^1$

素因数の和:20470

約数の個数: 48

約数和(自身を含む): 205954560

約数和(自身を除く): 120552980

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 20431, 40862, 81724, 102155, 204310, 224741, 388189, 408620, 449482, 776378, 898964, 1123705, 1552756, 1940945, 2247410, 3881890, 4270079, 4494820, 7763780, 8540158, 17080316, 21350395, 42700790, 85401580]

約数ペア:

[(1, 85401580), (2, 42700790), (4, 21350395), (5, 17080316), (10, 8540158), (11, 7763780), (19, 4494820), (20, 4270079), (22, 3881890), (38, 2247410), (44, 1940945), (55, 1552756), (76, 1123705), (95, 898964), (110, 776378), (190, 449482), (209, 408620), (220, 388189), (380, 224741), (418, 204310), (836, 102155), (1045, 81724), (2090, 40862), (4180, 20431)]