30719560

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1187}}^1$

素因数の和:1845

約数の個数: 32

約数和(自身を含む): 69284160

約数和(自身を除く): 38564600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1187, 1294, 2374, 2588, 3235, 4748, 5176, 5935, 6470, 9496, 11870, 12940, 23740, 25880, 47480, 767989, 1535978, 3071956, 3839945, 6143912, 7679890, 15359780, 30719560]

約数ペア:

[(1, 30719560), (2, 15359780), (4, 7679890), (5, 6143912), (8, 3839945), (10, 3071956), (20, 1535978), (40, 767989), (647, 47480), (1187, 25880), (1294, 23740), (2374, 12940), (2588, 11870), (3235, 9496), (4748, 6470), (5176, 5935)]