8557520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2609}}^1$

素因数の和:2663

約数の個数: 40

約数和(自身を含む): 20389320

約数和(自身を除く): 11831800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 2609, 3280, 5218, 10436, 13045, 20872, 26090, 41744, 52180, 104360, 106969, 208720, 213938, 427876, 534845, 855752, 1069690, 1711504, 2139380, 4278760, 8557520]

約数ペア:

[(1, 8557520), (2, 4278760), (4, 2139380), (5, 1711504), (8, 1069690), (10, 855752), (16, 534845), (20, 427876), (40, 213938), (41, 208720), (80, 106969), (82, 104360), (164, 52180), (205, 41744), (328, 26090), (410, 20872), (656, 13045), (820, 10436), (1640, 5218), (2609, 3280)]