20147700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 58746240

約数和(自身を除く): 38598540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 239, 281, 300, 478, 562, 717, 843, 956, 1124, 1195, 1405, 1434, 1686, 2390, 2810, 2868, 3372, 3585, 4215, 4780, 5620, 5975, 7025, 7170, 8430, 11950, 14050, 14340, 16860, 17925, 21075, 23900, 28100, 35850, 42150, 67159, 71700, 84300, 134318, 201477, 268636, 335795, 402954, 671590, 805908, 1007385, 1343180, 1678975, 2014770, 3357950, 4029540, 5036925, 6715900, 10073850, 20147700]

約数ペア:

[(1, 20147700), (2, 10073850), (3, 6715900), (4, 5036925), (5, 4029540), (6, 3357950), (10, 2014770), (12, 1678975), (15, 1343180), (20, 1007385), (25, 805908), (30, 671590), (50, 402954), (60, 335795), (75, 268636), (100, 201477), (150, 134318), (239, 84300), (281, 71700), (300, 67159), (478, 42150), (562, 35850), (717, 28100), (843, 23900), (956, 21075), (1124, 17925), (1195, 16860), (1405, 14340), (1434, 14050), (1686, 11950), (2390, 8430), (2810, 7170), (2868, 7025), (3372, 5975), (3585, 5620), (4215, 4780)]