280383160

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{44647}}^1$

素因数の和:44815

約数の個数: 32

約数和(自身を含む): 634894560

約数和(自身を除く): 354511400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 44647, 89294, 178588, 223235, 357176, 446470, 892940, 1785880, 7009579, 14019158, 28038316, 35047895, 56076632, 70095790, 140191580, 280383160]

約数ペア:

[(1, 280383160), (2, 140191580), (4, 70095790), (5, 56076632), (8, 35047895), (10, 28038316), (20, 14019158), (40, 7009579), (157, 1785880), (314, 892940), (628, 446470), (785, 357176), (1256, 223235), (1570, 178588), (3140, 89294), (6280, 44647)]