251831475

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1259}}^1$

素因数の和:1409

約数の個数: 72

約数和(自身を含む): 519966720

約数和(自身を除く): 268135245

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 127, 175, 225, 315, 381, 525, 635, 889, 1143, 1259, 1575, 1905, 2667, 3175, 3777, 4445, 5715, 6295, 8001, 8813, 9525, 11331, 13335, 18885, 22225, 26439, 28575, 31475, 40005, 44065, 56655, 66675, 79317, 94425, 132195, 159893, 200025, 220325, 283275, 396585, 479679, 660975, 799465, 1119251, 1439037, 1982925, 2398395, 3357753, 3997325, 5596255, 7195185, 10073259, 11991975, 16788765, 27981275, 35975925, 50366295, 83943825, 251831475]

約数ペア:

[(1, 251831475), (3, 83943825), (5, 50366295), (7, 35975925), (9, 27981275), (15, 16788765), (21, 11991975), (25, 10073259), (35, 7195185), (45, 5596255), (63, 3997325), (75, 3357753), (105, 2398395), (127, 1982925), (175, 1439037), (225, 1119251), (315, 799465), (381, 660975), (525, 479679), (635, 396585), (889, 283275), (1143, 220325), (1259, 200025), (1575, 159893), (1905, 132195), (2667, 94425), (3175, 79317), (3777, 66675), (4445, 56655), (5715, 44065), (6295, 40005), (8001, 31475), (8813, 28575), (9525, 26439), (11331, 22225), (13335, 18885)]