131139680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:461

約数の個数: 144

約数和(自身を含む): 369729360

約数和(自身を除く): 238589680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 49, 56, 70, 80, 86, 98, 112, 140, 160, 172, 196, 215, 224, 245, 280, 301, 344, 389, 392, 430, 490, 560, 602, 688, 778, 784, 860, 980, 1120, 1204, 1376, 1505, 1556, 1568, 1720, 1945, 1960, 2107, 2408, 2723, 3010, 3112, 3440, 3890, 3920, 4214, 4816, 5446, 6020, 6224, 6880, 7780, 7840, 8428, 9632, 10535, 10892, 12040, 12448, 13615, 15560, 16727, 16856, 19061, 21070, 21784, 24080, 27230, 31120, 33454, 33712, 38122, 42140, 43568, 48160, 54460, 62240, 66908, 67424, 76244, 83635, 84280, 87136, 95305, 108920, 117089, 133816, 152488, 167270, 168560, 190610, 217840, 234178, 267632, 304976, 334540, 337120, 381220, 435680, 468356, 535264, 585445, 609952, 669080, 762440, 819623, 936712, 1170890, 1338160, 1524880, 1639246, 1873424, 2341780, 2676320, 3049760, 3278492, 3746848, 4098115, 4683560, 6556984, 8196230, 9367120, 13113968, 16392460, 18734240, 26227936, 32784920, 65569840, 131139680]

約数ペア:

[(1, 131139680), (2, 65569840), (4, 32784920), (5, 26227936), (7, 18734240), (8, 16392460), (10, 13113968), (14, 9367120), (16, 8196230), (20, 6556984), (28, 4683560), (32, 4098115), (35, 3746848), (40, 3278492), (43, 3049760), (49, 2676320), (56, 2341780), (70, 1873424), (80, 1639246), (86, 1524880), (98, 1338160), (112, 1170890), (140, 936712), (160, 819623), (172, 762440), (196, 669080), (215, 609952), (224, 585445), (245, 535264), (280, 468356), (301, 435680), (344, 381220), (389, 337120), (392, 334540), (430, 304976), (490, 267632), (560, 234178), (602, 217840), (688, 190610), (778, 168560), (784, 167270), (860, 152488), (980, 133816), (1120, 117089), (1204, 108920), (1376, 95305), (1505, 87136), (1556, 84280), (1568, 83635), (1720, 76244), (1945, 67424), (1960, 66908), (2107, 62240), (2408, 54460), (2723, 48160), (3010, 43568), (3112, 42140), (3440, 38122), (3890, 33712), (3920, 33454), (4214, 31120), (4816, 27230), (5446, 24080), (6020, 21784), (6224, 21070), (6880, 19061), (7780, 16856), (7840, 16727), (8428, 15560), (9632, 13615), (10535, 12448), (10892, 12040)]