80441900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 144

約数和(自身を含む): 225318912

約数和(自身を除く): 144877012

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 31, 35, 44, 50, 55, 62, 70, 77, 100, 110, 124, 140, 154, 155, 175, 217, 220, 275, 308, 310, 337, 341, 350, 385, 434, 550, 620, 674, 682, 700, 770, 775, 868, 1085, 1100, 1348, 1364, 1540, 1550, 1685, 1705, 1925, 2170, 2359, 2387, 3100, 3370, 3410, 3707, 3850, 4340, 4718, 4774, 5425, 6740, 6820, 7414, 7700, 8425, 8525, 9436, 9548, 10447, 10850, 11795, 11935, 14828, 16850, 17050, 18535, 20894, 21700, 23590, 23870, 25949, 33700, 34100, 37070, 41788, 47180, 47740, 51898, 52235, 58975, 59675, 73129, 74140, 92675, 103796, 104470, 114917, 117950, 119350, 129745, 146258, 185350, 208940, 229834, 235900, 238700, 259490, 261175, 292516, 365645, 370700, 459668, 518980, 522350, 574585, 648725, 731290, 804419, 1044700, 1149170, 1297450, 1462580, 1608838, 1828225, 2298340, 2594900, 2872925, 3217676, 3656450, 4022095, 5745850, 7312900, 8044190, 11491700, 16088380, 20110475, 40220950, 80441900]

約数ペア:

[(1, 80441900), (2, 40220950), (4, 20110475), (5, 16088380), (7, 11491700), (10, 8044190), (11, 7312900), (14, 5745850), (20, 4022095), (22, 3656450), (25, 3217676), (28, 2872925), (31, 2594900), (35, 2298340), (44, 1828225), (50, 1608838), (55, 1462580), (62, 1297450), (70, 1149170), (77, 1044700), (100, 804419), (110, 731290), (124, 648725), (140, 574585), (154, 522350), (155, 518980), (175, 459668), (217, 370700), (220, 365645), (275, 292516), (308, 261175), (310, 259490), (337, 238700), (341, 235900), (350, 229834), (385, 208940), (434, 185350), (550, 146258), (620, 129745), (674, 119350), (682, 117950), (700, 114917), (770, 104470), (775, 103796), (868, 92675), (1085, 74140), (1100, 73129), (1348, 59675), (1364, 58975), (1540, 52235), (1550, 51898), (1685, 47740), (1705, 47180), (1925, 41788), (2170, 37070), (2359, 34100), (2387, 33700), (3100, 25949), (3370, 23870), (3410, 23590), (3707, 21700), (3850, 20894), (4340, 18535), (4718, 17050), (4774, 16850), (5425, 14828), (6740, 11935), (6820, 11795), (7414, 10850), (7700, 10447), (8425, 9548), (8525, 9436)]