253293820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{547}}^1$

素因数の和:719

約数の個数: 72

約数和(自身を含む): 581246064

約数和(自身を除く): 327952244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 137, 169, 260, 274, 338, 547, 548, 676, 685, 845, 1094, 1370, 1690, 1781, 2188, 2735, 2740, 3380, 3562, 5470, 7111, 7124, 8905, 10940, 14222, 17810, 23153, 28444, 35555, 35620, 46306, 71110, 74939, 92443, 92612, 115765, 142220, 149878, 184886, 231530, 299756, 369772, 374695, 462215, 463060, 749390, 924430, 974207, 1498780, 1848860, 1948414, 3896828, 4871035, 9742070, 12664691, 19484140, 25329382, 50658764, 63323455, 126646910, 253293820]

約数ペア:

[(1, 253293820), (2, 126646910), (4, 63323455), (5, 50658764), (10, 25329382), (13, 19484140), (20, 12664691), (26, 9742070), (52, 4871035), (65, 3896828), (130, 1948414), (137, 1848860), (169, 1498780), (260, 974207), (274, 924430), (338, 749390), (547, 463060), (548, 462215), (676, 374695), (685, 369772), (845, 299756), (1094, 231530), (1370, 184886), (1690, 149878), (1781, 142220), (2188, 115765), (2735, 92612), (2740, 92443), (3380, 74939), (3562, 71110), (5470, 46306), (7111, 35620), (7124, 35555), (8905, 28444), (10940, 23153), (14222, 17810)]