12784240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{617}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 34944192

約数和(自身を除く): 22159952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 617, 740, 1036, 1234, 1295, 1480, 2072, 2468, 2590, 2960, 3085, 4144, 4319, 4936, 5180, 6170, 8638, 9872, 10360, 12340, 17276, 20720, 21595, 22829, 24680, 34552, 43190, 45658, 49360, 69104, 86380, 91316, 114145, 159803, 172760, 182632, 228290, 319606, 345520, 365264, 456580, 639212, 799015, 913160, 1278424, 1598030, 1826320, 2556848, 3196060, 6392120, 12784240]

約数ペア:

[(1, 12784240), (2, 6392120), (4, 3196060), (5, 2556848), (7, 1826320), (8, 1598030), (10, 1278424), (14, 913160), (16, 799015), (20, 639212), (28, 456580), (35, 365264), (37, 345520), (40, 319606), (56, 228290), (70, 182632), (74, 172760), (80, 159803), (112, 114145), (140, 91316), (148, 86380), (185, 69104), (259, 49360), (280, 45658), (296, 43190), (370, 34552), (518, 24680), (560, 22829), (592, 21595), (617, 20720), (740, 17276), (1036, 12340), (1234, 10360), (1295, 9872), (1480, 8638), (2072, 6170), (2468, 5180), (2590, 4936), (2960, 4319), (3085, 4144)]