251491520

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:447

約数の個数: 168

約数和(自身を含む): 714749904

約数和(自身を除く): 463258384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 49, 56, 64, 70, 80, 86, 98, 112, 140, 160, 172, 196, 215, 224, 245, 280, 301, 320, 344, 373, 392, 430, 448, 490, 560, 602, 688, 746, 784, 860, 980, 1120, 1204, 1376, 1492, 1505, 1568, 1720, 1865, 1960, 2107, 2240, 2408, 2611, 2752, 2984, 3010, 3136, 3440, 3730, 3920, 4214, 4816, 5222, 5968, 6020, 6880, 7460, 7840, 8428, 9632, 10444, 10535, 11936, 12040, 13055, 13760, 14920, 15680, 16039, 16856, 18277, 19264, 20888, 21070, 23872, 24080, 26110, 29840, 32078, 33712, 36554, 41776, 42140, 48160, 52220, 59680, 64156, 67424, 73108, 80195, 83552, 84280, 91385, 96320, 104440, 112273, 119360, 128312, 134848, 146216, 160390, 167104, 168560, 182770, 208880, 224546, 256624, 292432, 320780, 337120, 365540, 417760, 449092, 513248, 561365, 584864, 641560, 674240, 731080, 785911, 835520, 898184, 1026496, 1122730, 1169728, 1283120, 1462160, 1571822, 1796368, 2245460, 2566240, 2924320, 3143644, 3592736, 3929555, 4490920, 5132480, 5848640, 6287288, 7185472, 7859110, 8981840, 12574576, 15718220, 17963680, 25149152, 31436440, 35927360, 50298304, 62872880, 125745760, 251491520]

約数ペア:

[(1, 251491520), (2, 125745760), (4, 62872880), (5, 50298304), (7, 35927360), (8, 31436440), (10, 25149152), (14, 17963680), (16, 15718220), (20, 12574576), (28, 8981840), (32, 7859110), (35, 7185472), (40, 6287288), (43, 5848640), (49, 5132480), (56, 4490920), (64, 3929555), (70, 3592736), (80, 3143644), (86, 2924320), (98, 2566240), (112, 2245460), (140, 1796368), (160, 1571822), (172, 1462160), (196, 1283120), (215, 1169728), (224, 1122730), (245, 1026496), (280, 898184), (301, 835520), (320, 785911), (344, 731080), (373, 674240), (392, 641560), (430, 584864), (448, 561365), (490, 513248), (560, 449092), (602, 417760), (688, 365540), (746, 337120), (784, 320780), (860, 292432), (980, 256624), (1120, 224546), (1204, 208880), (1376, 182770), (1492, 168560), (1505, 167104), (1568, 160390), (1720, 146216), (1865, 134848), (1960, 128312), (2107, 119360), (2240, 112273), (2408, 104440), (2611, 96320), (2752, 91385), (2984, 84280), (3010, 83552), (3136, 80195), (3440, 73108), (3730, 67424), (3920, 64156), (4214, 59680), (4816, 52220), (5222, 48160), (5968, 42140), (6020, 41776), (6880, 36554), (7460, 33712), (7840, 32078), (8428, 29840), (9632, 26110), (10444, 24080), (10535, 23872), (11936, 21070), (12040, 20888), (13055, 19264), (13760, 18277), (14920, 16856), (15680, 16039)]