54720080

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{15907}}^1$

素因数の和:15963

約数の個数: 40

約数和(自身を含む): 130191072

約数和(自身を除く): 75470992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 15907, 31814, 63628, 79535, 127256, 159070, 254512, 318140, 636280, 684001, 1272560, 1368002, 2736004, 3420005, 5472008, 6840010, 10944016, 13680020, 27360040, 54720080]

約数ペア:

[(1, 54720080), (2, 27360040), (4, 13680020), (5, 10944016), (8, 6840010), (10, 5472008), (16, 3420005), (20, 2736004), (40, 1368002), (43, 1272560), (80, 684001), (86, 636280), (172, 318140), (215, 254512), (344, 159070), (430, 127256), (688, 79535), (860, 63628), (1720, 31814), (3440, 15907)]