721428080

素因数分解:

$2^4\times 5^1\times {\mathrm{463}}^1\times {\mathrm{19477}}^1$

素因数の和:19953

約数の個数: 40

約数和(自身を含む): 1681029312

約数和(自身を除く): 959601232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 463, 926, 1852, 2315, 3704, 4630, 7408, 9260, 18520, 19477, 37040, 38954, 77908, 97385, 155816, 194770, 311632, 389540, 779080, 1558160, 9017851, 18035702, 36071404, 45089255, 72142808, 90178510, 144285616, 180357020, 360714040, 721428080]

約数ペア:

[(1, 721428080), (2, 360714040), (4, 180357020), (5, 144285616), (8, 90178510), (10, 72142808), (16, 45089255), (20, 36071404), (40, 18035702), (80, 9017851), (463, 1558160), (926, 779080), (1852, 389540), (2315, 311632), (3704, 194770), (4630, 155816), (7408, 97385), (9260, 77908), (18520, 38954), (19477, 37040)]