28875308

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{227}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 65499840

約数和(自身を除く): 36624532

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 59, 77, 98, 118, 154, 196, 227, 236, 308, 413, 454, 539, 649, 826, 908, 1078, 1298, 1589, 1652, 2156, 2497, 2596, 2891, 3178, 4543, 4994, 5782, 6356, 9086, 9988, 11123, 11564, 13393, 17479, 18172, 22246, 26786, 31801, 34958, 44492, 53572, 63602, 69916, 93751, 122353, 127204, 147323, 187502, 244706, 294646, 375004, 489412, 589292, 656257, 1031261, 1312514, 2062522, 2625028, 4125044, 7218827, 14437654, 28875308]

約数ペア:

[(1, 28875308), (2, 14437654), (4, 7218827), (7, 4125044), (11, 2625028), (14, 2062522), (22, 1312514), (28, 1031261), (44, 656257), (49, 589292), (59, 489412), (77, 375004), (98, 294646), (118, 244706), (154, 187502), (196, 147323), (227, 127204), (236, 122353), (308, 93751), (413, 69916), (454, 63602), (539, 53572), (649, 44492), (826, 34958), (908, 31801), (1078, 26786), (1298, 22246), (1589, 18172), (1652, 17479), (2156, 13393), (2497, 11564), (2596, 11123), (2891, 9988), (3178, 9086), (4543, 6356), (4994, 5782)]