255476280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1259}}^1$

素因数の和:1381

約数の個数: 128

約数和(自身を含む): 816480000

約数和(自身を除く): 561003720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 89, 95, 114, 120, 152, 178, 190, 228, 267, 285, 356, 380, 445, 456, 534, 570, 712, 760, 890, 1068, 1140, 1259, 1335, 1691, 1780, 2136, 2280, 2518, 2670, 3382, 3560, 3777, 5036, 5073, 5340, 6295, 6764, 7554, 8455, 10072, 10146, 10680, 12590, 13528, 15108, 16910, 18885, 20292, 23921, 25180, 25365, 30216, 33820, 37770, 40584, 47842, 50360, 50730, 67640, 71763, 75540, 95684, 101460, 112051, 119605, 143526, 151080, 191368, 202920, 224102, 239210, 287052, 336153, 358815, 448204, 478420, 560255, 574104, 672306, 717630, 896408, 956840, 1120510, 1344612, 1435260, 1680765, 2128969, 2241020, 2689224, 2870520, 3361530, 4257938, 4482040, 6386907, 6723060, 8515876, 10644845, 12773814, 13446120, 17031752, 21289690, 25547628, 31934535, 42579380, 51095256, 63869070, 85158760, 127738140, 255476280]

約数ペア:

[(1, 255476280), (2, 127738140), (3, 85158760), (4, 63869070), (5, 51095256), (6, 42579380), (8, 31934535), (10, 25547628), (12, 21289690), (15, 17031752), (19, 13446120), (20, 12773814), (24, 10644845), (30, 8515876), (38, 6723060), (40, 6386907), (57, 4482040), (60, 4257938), (76, 3361530), (89, 2870520), (95, 2689224), (114, 2241020), (120, 2128969), (152, 1680765), (178, 1435260), (190, 1344612), (228, 1120510), (267, 956840), (285, 896408), (356, 717630), (380, 672306), (445, 574104), (456, 560255), (534, 478420), (570, 448204), (712, 358815), (760, 336153), (890, 287052), (1068, 239210), (1140, 224102), (1259, 202920), (1335, 191368), (1691, 151080), (1780, 143526), (2136, 119605), (2280, 112051), (2518, 101460), (2670, 95684), (3382, 75540), (3560, 71763), (3777, 67640), (5036, 50730), (5073, 50360), (5340, 47842), (6295, 40584), (6764, 37770), (7554, 33820), (8455, 30216), (10072, 25365), (10146, 25180), (10680, 23921), (12590, 20292), (13528, 18885), (15108, 16910)]