84208840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 194400000

約数和(自身を除く): 110191160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 149, 199, 284, 298, 355, 398, 568, 596, 710, 745, 796, 995, 1192, 1420, 1490, 1592, 1990, 2840, 2980, 3980, 5960, 7960, 10579, 14129, 21158, 28258, 29651, 42316, 52895, 56516, 59302, 70645, 84632, 105790, 113032, 118604, 141290, 148255, 211580, 237208, 282580, 296510, 423160, 565160, 593020, 1186040, 2105221, 4210442, 8420884, 10526105, 16841768, 21052210, 42104420, 84208840]

約数ペア:

[(1, 84208840), (2, 42104420), (4, 21052210), (5, 16841768), (8, 10526105), (10, 8420884), (20, 4210442), (40, 2105221), (71, 1186040), (142, 593020), (149, 565160), (199, 423160), (284, 296510), (298, 282580), (355, 237208), (398, 211580), (568, 148255), (596, 141290), (710, 118604), (745, 113032), (796, 105790), (995, 84632), (1192, 70645), (1420, 59302), (1490, 56516), (1592, 52895), (1990, 42316), (2840, 29651), (2980, 28258), (3980, 21158), (5960, 14129), (7960, 10579)]