180908500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:314

約数の個数: 96

約数和(自身を含む): 421948800

約数和(自身を除く): 241040300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 137, 139, 190, 250, 274, 278, 380, 475, 500, 548, 556, 685, 695, 950, 1370, 1390, 1900, 2375, 2603, 2641, 2740, 2780, 3425, 3475, 4750, 5206, 5282, 6850, 6950, 9500, 10412, 10564, 13015, 13205, 13700, 13900, 17125, 17375, 19043, 26030, 26410, 34250, 34750, 38086, 52060, 52820, 65075, 66025, 68500, 69500, 76172, 95215, 130150, 132050, 190430, 260300, 264100, 325375, 330125, 361817, 380860, 476075, 650750, 660250, 723634, 952150, 1301500, 1320500, 1447268, 1809085, 1904300, 2380375, 3618170, 4760750, 7236340, 9045425, 9521500, 18090850, 36181700, 45227125, 90454250, 180908500]

約数ペア:

[(1, 180908500), (2, 90454250), (4, 45227125), (5, 36181700), (10, 18090850), (19, 9521500), (20, 9045425), (25, 7236340), (38, 4760750), (50, 3618170), (76, 2380375), (95, 1904300), (100, 1809085), (125, 1447268), (137, 1320500), (139, 1301500), (190, 952150), (250, 723634), (274, 660250), (278, 650750), (380, 476075), (475, 380860), (500, 361817), (548, 330125), (556, 325375), (685, 264100), (695, 260300), (950, 190430), (1370, 132050), (1390, 130150), (1900, 95215), (2375, 76172), (2603, 69500), (2641, 68500), (2740, 66025), (2780, 65075), (3425, 52820), (3475, 52060), (4750, 38086), (5206, 34750), (5282, 34250), (6850, 26410), (6950, 26030), (9500, 19043), (10412, 17375), (10564, 17125), (13015, 13900), (13205, 13700)]