156948280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{91249}}^1$

素因数の和:91303

約数の個数: 32

約数和(自身を含む): 361350000

約数和(自身を除く): 204401720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 91249, 182498, 364996, 456245, 729992, 912490, 1824980, 3649960, 3923707, 7847414, 15694828, 19618535, 31389656, 39237070, 78474140, 156948280]

約数ペア:

[(1, 156948280), (2, 78474140), (4, 39237070), (5, 31389656), (8, 19618535), (10, 15694828), (20, 7847414), (40, 3923707), (43, 3649960), (86, 1824980), (172, 912490), (215, 729992), (344, 456245), (430, 364996), (860, 182498), (1720, 91249)]