49986640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1321}}^1$

素因数の和:1388

約数の個数: 80

約数和(自身を含む): 129830976

約数和(自身を除く): 79844336

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1321, 1720, 1892, 2365, 2642, 3440, 3784, 4730, 5284, 6605, 7568, 9460, 10568, 13210, 14531, 18920, 21136, 26420, 29062, 37840, 52840, 56803, 58124, 72655, 105680, 113606, 116248, 145310, 227212, 232496, 284015, 290620, 454424, 568030, 581240, 624833, 908848, 1136060, 1162480, 1249666, 2272120, 2499332, 3124165, 4544240, 4998664, 6248330, 9997328, 12496660, 24993320, 49986640]

約数ペア:

[(1, 49986640), (2, 24993320), (4, 12496660), (5, 9997328), (8, 6248330), (10, 4998664), (11, 4544240), (16, 3124165), (20, 2499332), (22, 2272120), (40, 1249666), (43, 1162480), (44, 1136060), (55, 908848), (80, 624833), (86, 581240), (88, 568030), (110, 454424), (172, 290620), (176, 284015), (215, 232496), (220, 227212), (344, 145310), (430, 116248), (440, 113606), (473, 105680), (688, 72655), (860, 58124), (880, 56803), (946, 52840), (1321, 37840), (1720, 29062), (1892, 26420), (2365, 21136), (2642, 18920), (3440, 14531), (3784, 13210), (4730, 10568), (5284, 9460), (6605, 7568)]