12743480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 30412800

約数和(自身を除く): 17669320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 62, 86, 124, 155, 172, 215, 239, 248, 310, 344, 430, 478, 620, 860, 956, 1195, 1240, 1333, 1720, 1912, 2390, 2666, 4780, 5332, 6665, 7409, 9560, 10277, 10664, 13330, 14818, 20554, 26660, 29636, 37045, 41108, 51385, 53320, 59272, 74090, 82216, 102770, 148180, 205540, 296360, 318587, 411080, 637174, 1274348, 1592935, 2548696, 3185870, 6371740, 12743480]

約数ペア:

[(1, 12743480), (2, 6371740), (4, 3185870), (5, 2548696), (8, 1592935), (10, 1274348), (20, 637174), (31, 411080), (40, 318587), (43, 296360), (62, 205540), (86, 148180), (124, 102770), (155, 82216), (172, 74090), (215, 59272), (239, 53320), (248, 51385), (310, 41108), (344, 37045), (430, 29636), (478, 26660), (620, 20554), (860, 14818), (956, 13330), (1195, 10664), (1240, 10277), (1333, 9560), (1720, 7409), (1912, 6665), (2390, 5332), (2666, 4780)]