87216780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{739}}^1$

素因数の和:1039

約数の個数: 96

約数和(自身を含む): 280465920

約数和(自身を除く): 193249140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 281, 420, 562, 739, 843, 1124, 1405, 1478, 1686, 1967, 2217, 2810, 2956, 3372, 3695, 3934, 4215, 4434, 5173, 5620, 5901, 7390, 7868, 8430, 8868, 9835, 10346, 11085, 11802, 14780, 15519, 16860, 19670, 20692, 22170, 23604, 25865, 29505, 31038, 39340, 44340, 51730, 59010, 62076, 77595, 103460, 118020, 155190, 207659, 310380, 415318, 622977, 830636, 1038295, 1245954, 1453613, 2076590, 2491908, 2907226, 3114885, 4153180, 4360839, 5814452, 6229770, 7268065, 8721678, 12459540, 14536130, 17443356, 21804195, 29072260, 43608390, 87216780]

約数ペア:

[(1, 87216780), (2, 43608390), (3, 29072260), (4, 21804195), (5, 17443356), (6, 14536130), (7, 12459540), (10, 8721678), (12, 7268065), (14, 6229770), (15, 5814452), (20, 4360839), (21, 4153180), (28, 3114885), (30, 2907226), (35, 2491908), (42, 2076590), (60, 1453613), (70, 1245954), (84, 1038295), (105, 830636), (140, 622977), (210, 415318), (281, 310380), (420, 207659), (562, 155190), (739, 118020), (843, 103460), (1124, 77595), (1405, 62076), (1478, 59010), (1686, 51730), (1967, 44340), (2217, 39340), (2810, 31038), (2956, 29505), (3372, 25865), (3695, 23604), (3934, 22170), (4215, 20692), (4434, 19670), (5173, 16860), (5620, 15519), (5901, 14780), (7390, 11802), (7868, 11085), (8430, 10346), (8868, 9835)]