251228744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^2$

素因数の和:478

約数の個数: 48

約数和(自身を含む): 518209020

約数和(自身を除く): 266980276

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 199, 244, 398, 488, 793, 796, 1586, 1592, 2587, 3172, 5174, 6344, 10348, 12139, 20696, 24278, 39601, 48556, 79202, 97112, 157807, 158404, 315614, 316808, 514813, 631228, 1029626, 1262456, 2059252, 2415661, 4118504, 4831322, 9662644, 19325288, 31403593, 62807186, 125614372, 251228744]

約数ペア:

[(1, 251228744), (2, 125614372), (4, 62807186), (8, 31403593), (13, 19325288), (26, 9662644), (52, 4831322), (61, 4118504), (104, 2415661), (122, 2059252), (199, 1262456), (244, 1029626), (398, 631228), (488, 514813), (793, 316808), (796, 315614), (1586, 158404), (1592, 157807), (2587, 97112), (3172, 79202), (5174, 48556), (6344, 39601), (10348, 24278), (12139, 20696)]