7145480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4357}}^1$

素因数の和:4409

約数の個数: 32

約数和(自身を含む): 16473240

約数和(自身を除く): 9327760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4357, 8714, 17428, 21785, 34856, 43570, 87140, 174280, 178637, 357274, 714548, 893185, 1429096, 1786370, 3572740, 7145480]

約数ペア:

[(1, 7145480), (2, 3572740), (4, 1786370), (5, 1429096), (8, 893185), (10, 714548), (20, 357274), (40, 178637), (41, 174280), (82, 87140), (164, 43570), (205, 34856), (328, 21785), (410, 17428), (820, 8714), (1640, 4357)]