20123353280

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{13417}}^1$

素因数の和:13586

約数の個数: 112

約数和(自身を含む): 49486657440

約数和(自身を除く): 29363304160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 109, 160, 172, 215, 218, 320, 344, 430, 436, 545, 688, 860, 872, 1090, 1376, 1720, 1744, 2180, 2752, 3440, 3488, 4360, 4687, 6880, 6976, 8720, 9374, 13417, 13760, 17440, 18748, 23435, 26834, 34880, 37496, 46870, 53668, 67085, 74992, 93740, 107336, 134170, 149984, 187480, 214672, 268340, 299968, 374960, 429344, 536680, 576931, 749920, 858688, 1073360, 1153862, 1462453, 1499840, 2146720, 2307724, 2884655, 2924906, 4293440, 4615448, 5769310, 5849812, 7312265, 9230896, 11538620, 11699624, 14624530, 18461792, 23077240, 23399248, 29249060, 36923584, 46154480, 46798496, 58498120, 62885479, 92308960, 93596992, 116996240, 125770958, 184617920, 233992480, 251541916, 314427395, 467984960, 503083832, 628854790, 1006167664, 1257709580, 2012335328, 2515419160, 4024670656, 5030838320, 10061676640, 20123353280]

約数ペア:

[(1, 20123353280), (2, 10061676640), (4, 5030838320), (5, 4024670656), (8, 2515419160), (10, 2012335328), (16, 1257709580), (20, 1006167664), (32, 628854790), (40, 503083832), (43, 467984960), (64, 314427395), (80, 251541916), (86, 233992480), (109, 184617920), (160, 125770958), (172, 116996240), (215, 93596992), (218, 92308960), (320, 62885479), (344, 58498120), (430, 46798496), (436, 46154480), (545, 36923584), (688, 29249060), (860, 23399248), (872, 23077240), (1090, 18461792), (1376, 14624530), (1720, 11699624), (1744, 11538620), (2180, 9230896), (2752, 7312265), (3440, 5849812), (3488, 5769310), (4360, 4615448), (4687, 4293440), (6880, 2924906), (6976, 2884655), (8720, 2307724), (9374, 2146720), (13417, 1499840), (13760, 1462453), (17440, 1153862), (18748, 1073360), (23435, 858688), (26834, 749920), (34880, 576931), (37496, 536680), (46870, 429344), (53668, 374960), (67085, 299968), (74992, 268340), (93740, 214672), (107336, 187480), (134170, 149984)]