157280560

素因数分解:

$2^4\times 5^1\times {\mathrm{1966007}}^1$

素因数の和:1966020

約数の個数: 20

約数和(自身を含む): 365677488

約数和(自身を除く): 208396928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1966007, 3932014, 7864028, 9830035, 15728056, 19660070, 31456112, 39320140, 78640280, 157280560]

約数ペア:

[(1, 157280560), (2, 78640280), (4, 39320140), (5, 31456112), (8, 19660070), (10, 15728056), (16, 9830035), (20, 7864028), (40, 3932014), (80, 1966007)]