243439840

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31051}}^1$

素因数の和:31080

約数の個数: 72

約数和(自身を含む): 669046392

約数和(自身を除く): 425606552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 31051, 62102, 124204, 155255, 217357, 248408, 310510, 434714, 496816, 621020, 869428, 993632, 1086785, 1242040, 1521499, 1738856, 2173570, 2484080, 3042998, 3477712, 4347140, 4968160, 6085996, 6955424, 7607495, 8694280, 12171992, 15214990, 17388560, 24343984, 30429980, 34777120, 48687968, 60859960, 121719920, 243439840]

約数ペア:

[(1, 243439840), (2, 121719920), (4, 60859960), (5, 48687968), (7, 34777120), (8, 30429980), (10, 24343984), (14, 17388560), (16, 15214990), (20, 12171992), (28, 8694280), (32, 7607495), (35, 6955424), (40, 6085996), (49, 4968160), (56, 4347140), (70, 3477712), (80, 3042998), (98, 2484080), (112, 2173570), (140, 1738856), (160, 1521499), (196, 1242040), (224, 1086785), (245, 993632), (280, 869428), (392, 621020), (490, 496816), (560, 434714), (784, 310510), (980, 248408), (1120, 217357), (1568, 155255), (1960, 124204), (3920, 62102), (7840, 31051)]