129015560

素因数分解:

$2^3\times 5^1\times {\mathrm{3225389}}^1$

素因数の和:3225400

約数の個数: 16

約数和(自身を含む): 290285100

約数和(自身を除く): 161269540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3225389, 6450778, 12901556, 16126945, 25803112, 32253890, 64507780, 129015560]

約数ペア:

[(1, 129015560), (2, 64507780), (4, 32253890), (5, 25803112), (8, 16126945), (10, 12901556), (20, 6450778), (40, 3225389)]