71235520

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:258

約数の個数: 112

約数和(自身を含む): 180246528

約数和(自身を除く): 109011008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 62, 64, 80, 86, 124, 155, 160, 167, 172, 215, 248, 310, 320, 334, 344, 430, 496, 620, 668, 688, 835, 860, 992, 1240, 1333, 1336, 1376, 1670, 1720, 1984, 2480, 2666, 2672, 2752, 3340, 3440, 4960, 5177, 5332, 5344, 6665, 6680, 6880, 7181, 9920, 10354, 10664, 10688, 13330, 13360, 13760, 14362, 20708, 21328, 25885, 26660, 26720, 28724, 35905, 41416, 42656, 51770, 53320, 53440, 57448, 71810, 82832, 85312, 103540, 106640, 114896, 143620, 165664, 207080, 213280, 222611, 229792, 287240, 331328, 414160, 426560, 445222, 459584, 574480, 828320, 890444, 1113055, 1148960, 1656640, 1780888, 2226110, 2297920, 3561776, 4452220, 7123552, 8904440, 14247104, 17808880, 35617760, 71235520]

約数ペア:

[(1, 71235520), (2, 35617760), (4, 17808880), (5, 14247104), (8, 8904440), (10, 7123552), (16, 4452220), (20, 3561776), (31, 2297920), (32, 2226110), (40, 1780888), (43, 1656640), (62, 1148960), (64, 1113055), (80, 890444), (86, 828320), (124, 574480), (155, 459584), (160, 445222), (167, 426560), (172, 414160), (215, 331328), (248, 287240), (310, 229792), (320, 222611), (334, 213280), (344, 207080), (430, 165664), (496, 143620), (620, 114896), (668, 106640), (688, 103540), (835, 85312), (860, 82832), (992, 71810), (1240, 57448), (1333, 53440), (1336, 53320), (1376, 51770), (1670, 42656), (1720, 41416), (1984, 35905), (2480, 28724), (2666, 26720), (2672, 26660), (2752, 25885), (3340, 21328), (3440, 20708), (4960, 14362), (5177, 13760), (5332, 13360), (5344, 13330), (6665, 10688), (6680, 10664), (6880, 10354), (7181, 9920)]