42890720

素因数分解:

$2^5\times 5^1\times {\mathrm{67}}^1\times {\mathrm{4001}}^1$

素因数の和:4083

約数の個数: 48

約数和(自身を含む): 102867408

約数和(自身を除く): 59976688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 67, 80, 134, 160, 268, 335, 536, 670, 1072, 1340, 2144, 2680, 4001, 5360, 8002, 10720, 16004, 20005, 32008, 40010, 64016, 80020, 128032, 160040, 268067, 320080, 536134, 640160, 1072268, 1340335, 2144536, 2680670, 4289072, 5361340, 8578144, 10722680, 21445360, 42890720]

約数ペア:

[(1, 42890720), (2, 21445360), (4, 10722680), (5, 8578144), (8, 5361340), (10, 4289072), (16, 2680670), (20, 2144536), (32, 1340335), (40, 1072268), (67, 640160), (80, 536134), (134, 320080), (160, 268067), (268, 160040), (335, 128032), (536, 80020), (670, 64016), (1072, 40010), (1340, 32008), (2144, 20005), (2680, 16004), (4001, 10720), (5360, 8002)]