6720980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{787}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 16415616

約数和(自身を除く): 9694636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 787, 854, 1220, 1574, 1708, 2135, 3148, 3935, 4270, 5509, 7870, 8540, 11018, 15740, 22036, 27545, 48007, 55090, 96014, 110180, 192028, 240035, 336049, 480070, 672098, 960140, 1344196, 1680245, 3360490, 6720980]

約数ペア:

[(1, 6720980), (2, 3360490), (4, 1680245), (5, 1344196), (7, 960140), (10, 672098), (14, 480070), (20, 336049), (28, 240035), (35, 192028), (61, 110180), (70, 96014), (122, 55090), (140, 48007), (244, 27545), (305, 22036), (427, 15740), (610, 11018), (787, 8540), (854, 7870), (1220, 5509), (1574, 4270), (1708, 3935), (2135, 3148)]