80202800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 120

約数和(自身を含む): 207345360

約数和(自身を除く): 127142560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 61, 76, 80, 95, 100, 122, 152, 173, 190, 200, 244, 304, 305, 346, 380, 400, 475, 488, 610, 692, 760, 865, 950, 976, 1159, 1220, 1384, 1520, 1525, 1730, 1900, 2318, 2440, 2768, 3050, 3287, 3460, 3800, 4325, 4636, 4880, 5795, 6100, 6574, 6920, 7600, 8650, 9272, 10553, 11590, 12200, 13148, 13840, 16435, 17300, 18544, 21106, 23180, 24400, 26296, 28975, 32870, 34600, 42212, 46360, 52592, 52765, 57950, 65740, 69200, 82175, 84424, 92720, 105530, 115900, 131480, 164350, 168848, 200507, 211060, 231800, 262960, 263825, 328700, 401014, 422120, 463600, 527650, 657400, 802028, 844240, 1002535, 1055300, 1314800, 1604056, 2005070, 2110600, 3208112, 4010140, 4221200, 5012675, 8020280, 10025350, 16040560, 20050700, 40101400, 80202800]

約数ペア:

[(1, 80202800), (2, 40101400), (4, 20050700), (5, 16040560), (8, 10025350), (10, 8020280), (16, 5012675), (19, 4221200), (20, 4010140), (25, 3208112), (38, 2110600), (40, 2005070), (50, 1604056), (61, 1314800), (76, 1055300), (80, 1002535), (95, 844240), (100, 802028), (122, 657400), (152, 527650), (173, 463600), (190, 422120), (200, 401014), (244, 328700), (304, 263825), (305, 262960), (346, 231800), (380, 211060), (400, 200507), (475, 168848), (488, 164350), (610, 131480), (692, 115900), (760, 105530), (865, 92720), (950, 84424), (976, 82175), (1159, 69200), (1220, 65740), (1384, 57950), (1520, 52765), (1525, 52592), (1730, 46360), (1900, 42212), (2318, 34600), (2440, 32870), (2768, 28975), (3050, 26296), (3287, 24400), (3460, 23180), (3800, 21106), (4325, 18544), (4636, 17300), (4880, 16435), (5795, 13840), (6100, 13148), (6574, 12200), (6920, 11590), (7600, 10553), (8650, 9272)]