28193508

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:455

約数の個数: 120

約数和(自身を含む): 87166464

約数和(自身を除く): 58972956

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 31, 36, 42, 54, 62, 63, 81, 84, 93, 108, 124, 126, 162, 186, 189, 217, 252, 279, 324, 372, 378, 401, 434, 558, 567, 651, 756, 802, 837, 868, 1116, 1134, 1203, 1302, 1604, 1674, 1953, 2268, 2406, 2511, 2604, 2807, 3348, 3609, 3906, 4812, 5022, 5614, 5859, 7218, 7812, 8421, 10044, 10827, 11228, 11718, 12431, 14436, 16842, 17577, 21654, 23436, 24862, 25263, 32481, 33684, 35154, 37293, 43308, 49724, 50526, 64962, 70308, 74586, 75789, 87017, 101052, 111879, 129924, 149172, 151578, 174034, 223758, 227367, 261051, 303156, 335637, 348068, 447516, 454734, 522102, 671274, 783153, 909468, 1006911, 1044204, 1342548, 1566306, 2013822, 2349459, 3132612, 4027644, 4698918, 7048377, 9397836, 14096754, 28193508]

約数ペア:

[(1, 28193508), (2, 14096754), (3, 9397836), (4, 7048377), (6, 4698918), (7, 4027644), (9, 3132612), (12, 2349459), (14, 2013822), (18, 1566306), (21, 1342548), (27, 1044204), (28, 1006911), (31, 909468), (36, 783153), (42, 671274), (54, 522102), (62, 454734), (63, 447516), (81, 348068), (84, 335637), (93, 303156), (108, 261051), (124, 227367), (126, 223758), (162, 174034), (186, 151578), (189, 149172), (217, 129924), (252, 111879), (279, 101052), (324, 87017), (372, 75789), (378, 74586), (401, 70308), (434, 64962), (558, 50526), (567, 49724), (651, 43308), (756, 37293), (802, 35154), (837, 33684), (868, 32481), (1116, 25263), (1134, 24862), (1203, 23436), (1302, 21654), (1604, 17577), (1674, 16842), (1953, 14436), (2268, 12431), (2406, 11718), (2511, 11228), (2604, 10827), (2807, 10044), (3348, 8421), (3609, 7812), (3906, 7218), (4812, 5859), (5022, 5614)]