72620120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42221}}^1$

素因数の和:42275

約数の個数: 32

約数和(自身を含む): 167199120

約数和(自身を除く): 94579000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 42221, 84442, 168884, 211105, 337768, 422210, 844420, 1688840, 1815503, 3631006, 7262012, 9077515, 14524024, 18155030, 36310060, 72620120]

約数ペア:

[(1, 72620120), (2, 36310060), (4, 18155030), (5, 14524024), (8, 9077515), (10, 7262012), (20, 3631006), (40, 1815503), (43, 1688840), (86, 844420), (172, 422210), (215, 337768), (344, 211105), (430, 168884), (860, 84442), (1720, 42221)]