51379840

素因数分解:

$2^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1867}}^1$

素因数の和:1929

約数の個数: 64

約数和(自身を含む): 125753760

約数和(自身を除く): 74373920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 320, 344, 430, 640, 688, 860, 1376, 1720, 1867, 2752, 3440, 3734, 5504, 6880, 7468, 9335, 13760, 14936, 18670, 27520, 29872, 37340, 59744, 74680, 80281, 119488, 149360, 160562, 238976, 298720, 321124, 401405, 597440, 642248, 802810, 1194880, 1284496, 1605620, 2568992, 3211240, 5137984, 6422480, 10275968, 12844960, 25689920, 51379840]

約数ペア:

[(1, 51379840), (2, 25689920), (4, 12844960), (5, 10275968), (8, 6422480), (10, 5137984), (16, 3211240), (20, 2568992), (32, 1605620), (40, 1284496), (43, 1194880), (64, 802810), (80, 642248), (86, 597440), (128, 401405), (160, 321124), (172, 298720), (215, 238976), (320, 160562), (344, 149360), (430, 119488), (640, 80281), (688, 74680), (860, 59744), (1376, 37340), (1720, 29872), (1867, 27520), (2752, 18670), (3440, 14936), (3734, 13760), (5504, 9335), (6880, 7468)]