28678160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{617}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 77245056

約数和(自身を除く): 48566896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 83, 112, 140, 166, 280, 332, 415, 560, 581, 617, 664, 830, 1162, 1234, 1328, 1660, 2324, 2468, 2905, 3085, 3320, 4319, 4648, 4936, 5810, 6170, 6640, 8638, 9296, 9872, 11620, 12340, 17276, 21595, 23240, 24680, 34552, 43190, 46480, 49360, 51211, 69104, 86380, 102422, 172760, 204844, 256055, 345520, 358477, 409688, 512110, 716954, 819376, 1024220, 1433908, 1792385, 2048440, 2867816, 3584770, 4096880, 5735632, 7169540, 14339080, 28678160]

約数ペア:

[(1, 28678160), (2, 14339080), (4, 7169540), (5, 5735632), (7, 4096880), (8, 3584770), (10, 2867816), (14, 2048440), (16, 1792385), (20, 1433908), (28, 1024220), (35, 819376), (40, 716954), (56, 512110), (70, 409688), (80, 358477), (83, 345520), (112, 256055), (140, 204844), (166, 172760), (280, 102422), (332, 86380), (415, 69104), (560, 51211), (581, 49360), (617, 46480), (664, 43190), (830, 34552), (1162, 24680), (1234, 23240), (1328, 21595), (1660, 17276), (2324, 12340), (2468, 11620), (2905, 9872), (3085, 9296), (3320, 8638), (4319, 6640), (4648, 6170), (4936, 5810)]