12820640

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11447}}^1$

素因数の和:11469

約数の個数: 48

約数和(自身を含む): 34618752

約数和(自身を除く): 21798112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 11447, 22894, 45788, 57235, 80129, 91576, 114470, 160258, 183152, 228940, 320516, 366304, 400645, 457880, 641032, 801290, 915760, 1282064, 1602580, 1831520, 2564128, 3205160, 6410320, 12820640]

約数ペア:

[(1, 12820640), (2, 6410320), (4, 3205160), (5, 2564128), (7, 1831520), (8, 1602580), (10, 1282064), (14, 915760), (16, 801290), (20, 641032), (28, 457880), (32, 400645), (35, 366304), (40, 320516), (56, 228940), (70, 183152), (80, 160258), (112, 114470), (140, 91576), (160, 80129), (224, 57235), (280, 45788), (560, 22894), (1120, 11447)]