28708515

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{983}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 55261440

約数和(自身を除く): 26552925

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 59, 99, 165, 177, 295, 495, 531, 649, 885, 983, 1947, 2655, 2949, 3245, 4915, 5841, 8847, 9735, 10813, 14745, 29205, 32439, 44235, 54065, 57997, 97317, 162195, 173991, 289985, 486585, 521973, 637967, 869955, 1913901, 2609865, 3189835, 5741703, 9569505, 28708515]

約数ペア:

[(1, 28708515), (3, 9569505), (5, 5741703), (9, 3189835), (11, 2609865), (15, 1913901), (33, 869955), (45, 637967), (55, 521973), (59, 486585), (99, 289985), (165, 173991), (177, 162195), (295, 97317), (495, 57997), (531, 54065), (649, 44235), (885, 32439), (983, 29205), (1947, 14745), (2655, 10813), (2949, 9735), (3245, 8847), (4915, 5841)]