39855560

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{3877}}^1$

素因数の和:4145

約数の個数: 32

約数和(自身を含む): 90047160

約数和(自身を除く): 50191600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 3877, 5140, 7754, 10280, 15508, 19385, 31016, 38770, 77540, 155080, 996389, 1992778, 3985556, 4981945, 7971112, 9963890, 19927780, 39855560]

約数ペア:

[(1, 39855560), (2, 19927780), (4, 9963890), (5, 7971112), (8, 4981945), (10, 3985556), (20, 1992778), (40, 996389), (257, 155080), (514, 77540), (1028, 38770), (1285, 31016), (2056, 19385), (2570, 15508), (3877, 10280), (5140, 7754)]