73640080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21407}}^1$

素因数の和:21463

約数の個数: 40

約数和(自身を含む): 175203072

約数和(自身を除く): 101562992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 21407, 42814, 85628, 107035, 171256, 214070, 342512, 428140, 856280, 920501, 1712560, 1841002, 3682004, 4602505, 7364008, 9205010, 14728016, 18410020, 36820040, 73640080]

約数ペア:

[(1, 73640080), (2, 36820040), (4, 18410020), (5, 14728016), (8, 9205010), (10, 7364008), (16, 4602505), (20, 3682004), (40, 1841002), (43, 1712560), (80, 920501), (86, 856280), (172, 428140), (215, 342512), (344, 214070), (430, 171256), (688, 107035), (860, 85628), (1720, 42814), (3440, 21407)]