208551440

素因数分解:

$2^4\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2939}}^1$

素因数の和:3839

約数の個数: 40

約数和(自身を含む): 485593920

約数和(自身を除く): 277042480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 887, 1774, 2939, 3548, 4435, 5878, 7096, 8870, 11756, 14192, 14695, 17740, 23512, 29390, 35480, 47024, 58780, 70960, 117560, 235120, 2606893, 5213786, 10427572, 13034465, 20855144, 26068930, 41710288, 52137860, 104275720, 208551440]

約数ペア:

[(1, 208551440), (2, 104275720), (4, 52137860), (5, 41710288), (8, 26068930), (10, 20855144), (16, 13034465), (20, 10427572), (40, 5213786), (80, 2606893), (887, 235120), (1774, 117560), (2939, 70960), (3548, 58780), (4435, 47024), (5878, 35480), (7096, 29390), (8870, 23512), (11756, 17740), (14192, 14695)]