72904720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{617}}^1$

素因数の和:848

約数の個数: 80

約数和(自身を含む): 194951808

約数和(自身を除く): 122047088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 211, 280, 422, 560, 617, 844, 1055, 1234, 1477, 1688, 2110, 2468, 2954, 3085, 3376, 4220, 4319, 4936, 5908, 6170, 7385, 8440, 8638, 9872, 11816, 12340, 14770, 16880, 17276, 21595, 23632, 24680, 29540, 34552, 43190, 49360, 59080, 69104, 86380, 118160, 130187, 172760, 260374, 345520, 520748, 650935, 911309, 1041496, 1301870, 1822618, 2082992, 2603740, 3645236, 4556545, 5207480, 7290472, 9113090, 10414960, 14580944, 18226180, 36452360, 72904720]

約数ペア:

[(1, 72904720), (2, 36452360), (4, 18226180), (5, 14580944), (7, 10414960), (8, 9113090), (10, 7290472), (14, 5207480), (16, 4556545), (20, 3645236), (28, 2603740), (35, 2082992), (40, 1822618), (56, 1301870), (70, 1041496), (80, 911309), (112, 650935), (140, 520748), (211, 345520), (280, 260374), (422, 172760), (560, 130187), (617, 118160), (844, 86380), (1055, 69104), (1234, 59080), (1477, 49360), (1688, 43190), (2110, 34552), (2468, 29540), (2954, 24680), (3085, 23632), (3376, 21595), (4220, 17276), (4319, 16880), (4936, 14770), (5908, 12340), (6170, 11816), (7385, 9872), (8440, 8638)]