72479080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42139}}^1$

素因数の和:42193

約数の個数: 32

約数和(自身を含む): 166874400

約数和(自身を除く): 94395320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 42139, 84278, 168556, 210695, 337112, 421390, 842780, 1685560, 1811977, 3623954, 7247908, 9059885, 14495816, 18119770, 36239540, 72479080]

約数ペア:

[(1, 72479080), (2, 36239540), (4, 18119770), (5, 14495816), (8, 9059885), (10, 7247908), (20, 3623954), (40, 1811977), (43, 1685560), (86, 842780), (172, 421390), (215, 337112), (344, 210695), (430, 168556), (860, 84278), (1720, 42139)]