18090850

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 35935200

約数和(自身を除く): 17844350

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 137, 139, 190, 274, 278, 475, 685, 695, 950, 1370, 1390, 2603, 2641, 3425, 3475, 5206, 5282, 6850, 6950, 13015, 13205, 19043, 26030, 26410, 38086, 65075, 66025, 95215, 130150, 132050, 190430, 361817, 476075, 723634, 952150, 1809085, 3618170, 9045425, 18090850]

約数ペア:

[(1, 18090850), (2, 9045425), (5, 3618170), (10, 1809085), (19, 952150), (25, 723634), (38, 476075), (50, 361817), (95, 190430), (137, 132050), (139, 130150), (190, 95215), (274, 66025), (278, 65075), (475, 38086), (685, 26410), (695, 26030), (950, 19043), (1370, 13205), (1390, 13015), (2603, 6950), (2641, 6850), (3425, 5282), (3475, 5206)]