205216270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 432470016

約数和(自身を除く): 227253746

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 157, 263, 314, 355, 497, 526, 710, 785, 994, 1099, 1315, 1570, 1841, 2198, 2485, 2630, 3682, 4970, 5495, 9205, 10990, 11147, 18410, 18673, 22294, 37346, 41291, 55735, 78029, 82582, 93365, 111470, 130711, 156058, 186730, 206455, 261422, 289037, 390145, 412910, 578074, 653555, 780290, 1307110, 1445185, 2890370, 2931661, 5863322, 14658305, 20521627, 29316610, 41043254, 102608135, 205216270]

約数ペア:

[(1, 205216270), (2, 102608135), (5, 41043254), (7, 29316610), (10, 20521627), (14, 14658305), (35, 5863322), (70, 2931661), (71, 2890370), (142, 1445185), (157, 1307110), (263, 780290), (314, 653555), (355, 578074), (497, 412910), (526, 390145), (710, 289037), (785, 261422), (994, 206455), (1099, 186730), (1315, 156058), (1570, 130711), (1841, 111470), (2198, 93365), (2485, 82582), (2630, 78029), (3682, 55735), (4970, 41291), (5495, 37346), (9205, 22294), (10990, 18673), (11147, 18410)]