257772720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7727}}^1$

素因数の和:7882

約数の個数: 80

約数和(自身を含む): 804948480

約数和(自身を除く): 547175760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 139, 240, 278, 417, 556, 695, 834, 1112, 1390, 1668, 2085, 2224, 2780, 3336, 4170, 5560, 6672, 7727, 8340, 11120, 15454, 16680, 23181, 30908, 33360, 38635, 46362, 61816, 77270, 92724, 115905, 123632, 154540, 185448, 231810, 309080, 370896, 463620, 618160, 927240, 1074053, 1854480, 2148106, 3222159, 4296212, 5370265, 6444318, 8592424, 10740530, 12888636, 16110795, 17184848, 21481060, 25777272, 32221590, 42962120, 51554544, 64443180, 85924240, 128886360, 257772720]

約数ペア:

[(1, 257772720), (2, 128886360), (3, 85924240), (4, 64443180), (5, 51554544), (6, 42962120), (8, 32221590), (10, 25777272), (12, 21481060), (15, 17184848), (16, 16110795), (20, 12888636), (24, 10740530), (30, 8592424), (40, 6444318), (48, 5370265), (60, 4296212), (80, 3222159), (120, 2148106), (139, 1854480), (240, 1074053), (278, 927240), (417, 618160), (556, 463620), (695, 370896), (834, 309080), (1112, 231810), (1390, 185448), (1668, 154540), (2085, 123632), (2224, 115905), (2780, 92724), (3336, 77270), (4170, 61816), (5560, 46362), (6672, 38635), (7727, 33360), (8340, 30908), (11120, 23181), (15454, 16680)]