428581720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1123}}^1$

素因数の和:1217

約数の個数: 128

約数和(自身を含む): 1165363200

約数和(自身を除く): 736781480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 47, 56, 58, 70, 94, 116, 140, 145, 188, 203, 232, 235, 280, 290, 329, 376, 406, 470, 580, 658, 812, 940, 1015, 1123, 1160, 1316, 1363, 1624, 1645, 1880, 2030, 2246, 2632, 2726, 3290, 4060, 4492, 5452, 5615, 6580, 6815, 7861, 8120, 8984, 9541, 10904, 11230, 13160, 13630, 15722, 19082, 22460, 27260, 31444, 32567, 38164, 39305, 44920, 47705, 52781, 54520, 62888, 65134, 76328, 78610, 95410, 105562, 130268, 157220, 162835, 190820, 211124, 227969, 260536, 263905, 314440, 325670, 369467, 381640, 422248, 455938, 527810, 651340, 738934, 911876, 1055620, 1139845, 1302680, 1477868, 1530649, 1823752, 1847335, 2111240, 2279690, 2955736, 3061298, 3694670, 4559380, 6122596, 7389340, 7653245, 9118760, 10714543, 12245192, 14778680, 15306490, 21429086, 30612980, 42858172, 53572715, 61225960, 85716344, 107145430, 214290860, 428581720]

約数ペア:

[(1, 428581720), (2, 214290860), (4, 107145430), (5, 85716344), (7, 61225960), (8, 53572715), (10, 42858172), (14, 30612980), (20, 21429086), (28, 15306490), (29, 14778680), (35, 12245192), (40, 10714543), (47, 9118760), (56, 7653245), (58, 7389340), (70, 6122596), (94, 4559380), (116, 3694670), (140, 3061298), (145, 2955736), (188, 2279690), (203, 2111240), (232, 1847335), (235, 1823752), (280, 1530649), (290, 1477868), (329, 1302680), (376, 1139845), (406, 1055620), (470, 911876), (580, 738934), (658, 651340), (812, 527810), (940, 455938), (1015, 422248), (1123, 381640), (1160, 369467), (1316, 325670), (1363, 314440), (1624, 263905), (1645, 260536), (1880, 227969), (2030, 211124), (2246, 190820), (2632, 162835), (2726, 157220), (3290, 130268), (4060, 105562), (4492, 95410), (5452, 78610), (5615, 76328), (6580, 65134), (6815, 62888), (7861, 54520), (8120, 52781), (8984, 47705), (9541, 44920), (10904, 39305), (11230, 38164), (13160, 32567), (13630, 31444), (15722, 27260), (19082, 22460)]