209759240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{275999}}^1$

素因数の和:276029

約数の個数: 32

約数和(自身を含む): 496800000

約数和(自身を除く): 287040760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 275999, 551998, 1103996, 1379995, 2207992, 2759990, 5243981, 5519980, 10487962, 11039960, 20975924, 26219905, 41951848, 52439810, 104879620, 209759240]

約数ペア:

[(1, 209759240), (2, 104879620), (4, 52439810), (5, 41951848), (8, 26219905), (10, 20975924), (19, 11039960), (20, 10487962), (38, 5519980), (40, 5243981), (76, 2759990), (95, 2207992), (152, 1379995), (190, 1103996), (380, 551998), (760, 275999)]