20491488

素因数分解:

$2^5\times 3^3\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:697

約数の個数: 96

約数和(自身を含む): 61477920

約数和(自身を除く): 40986432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 72, 74, 96, 108, 111, 144, 148, 216, 222, 288, 296, 333, 432, 444, 592, 641, 666, 864, 888, 999, 1184, 1282, 1332, 1776, 1923, 1998, 2564, 2664, 3552, 3846, 3996, 5128, 5328, 5769, 7692, 7992, 10256, 10656, 11538, 15384, 15984, 17307, 20512, 23076, 23717, 30768, 31968, 34614, 46152, 47434, 61536, 69228, 71151, 92304, 94868, 138456, 142302, 184608, 189736, 213453, 276912, 284604, 379472, 426906, 553824, 569208, 640359, 758944, 853812, 1138416, 1280718, 1707624, 2276832, 2561436, 3415248, 5122872, 6830496, 10245744, 20491488]

約数ペア:

[(1, 20491488), (2, 10245744), (3, 6830496), (4, 5122872), (6, 3415248), (8, 2561436), (9, 2276832), (12, 1707624), (16, 1280718), (18, 1138416), (24, 853812), (27, 758944), (32, 640359), (36, 569208), (37, 553824), (48, 426906), (54, 379472), (72, 284604), (74, 276912), (96, 213453), (108, 189736), (111, 184608), (144, 142302), (148, 138456), (216, 94868), (222, 92304), (288, 71151), (296, 69228), (333, 61536), (432, 47434), (444, 46152), (592, 34614), (641, 31968), (666, 30768), (864, 23717), (888, 23076), (999, 20512), (1184, 17307), (1282, 15984), (1332, 15384), (1776, 11538), (1923, 10656), (1998, 10256), (2564, 7992), (2664, 7692), (3552, 5769), (3846, 5328), (3996, 5128)]