249283720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2551}}^1$

素因数の和:2918

約数の個数: 64

約数和(自身を含む): 643104000

約数和(自身を除く): 393820280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 349, 698, 1396, 1745, 2443, 2551, 2792, 3490, 4886, 5102, 6980, 9772, 10204, 12215, 12755, 13960, 17857, 19544, 20408, 24430, 25510, 35714, 48860, 51020, 71428, 89285, 97720, 102040, 142856, 178570, 357140, 714280, 890299, 1780598, 3561196, 4451495, 6232093, 7122392, 8902990, 12464186, 17805980, 24928372, 31160465, 35611960, 49856744, 62320930, 124641860, 249283720]

約数ペア:

[(1, 249283720), (2, 124641860), (4, 62320930), (5, 49856744), (7, 35611960), (8, 31160465), (10, 24928372), (14, 17805980), (20, 12464186), (28, 8902990), (35, 7122392), (40, 6232093), (56, 4451495), (70, 3561196), (140, 1780598), (280, 890299), (349, 714280), (698, 357140), (1396, 178570), (1745, 142856), (2443, 102040), (2551, 97720), (2792, 89285), (3490, 71428), (4886, 51020), (5102, 48860), (6980, 35714), (9772, 25510), (10204, 24430), (12215, 20408), (12755, 19544), (13960, 17857)]