25540880

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:252

約数の個数: 80

約数和(自身を含む): 62607600

約数和(自身を除く): 37066720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 101, 109, 116, 145, 202, 218, 232, 290, 404, 436, 464, 505, 545, 580, 808, 872, 1010, 1090, 1160, 1616, 1744, 2020, 2180, 2320, 2929, 3161, 4040, 4360, 5858, 6322, 8080, 8720, 11009, 11716, 12644, 14645, 15805, 22018, 23432, 25288, 29290, 31610, 44036, 46864, 50576, 55045, 58580, 63220, 88072, 110090, 117160, 126440, 176144, 220180, 234320, 252880, 319261, 440360, 638522, 880720, 1277044, 1596305, 2554088, 3192610, 5108176, 6385220, 12770440, 25540880]

約数ペア:

[(1, 25540880), (2, 12770440), (4, 6385220), (5, 5108176), (8, 3192610), (10, 2554088), (16, 1596305), (20, 1277044), (29, 880720), (40, 638522), (58, 440360), (80, 319261), (101, 252880), (109, 234320), (116, 220180), (145, 176144), (202, 126440), (218, 117160), (232, 110090), (290, 88072), (404, 63220), (436, 58580), (464, 55045), (505, 50576), (545, 46864), (580, 44036), (808, 31610), (872, 29290), (1010, 25288), (1090, 23432), (1160, 22018), (1616, 15805), (1744, 14645), (2020, 12644), (2180, 11716), (2320, 11009), (2929, 8720), (3161, 8080), (4040, 6322), (4360, 5858)]