207979700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 517466880

約数和(自身を除く): 309487180

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 25, 34, 38, 47, 50, 68, 76, 85, 94, 95, 100, 137, 170, 188, 190, 235, 274, 323, 340, 380, 425, 470, 475, 548, 646, 685, 799, 850, 893, 940, 950, 1175, 1292, 1370, 1598, 1615, 1700, 1786, 1900, 2329, 2350, 2603, 2740, 3196, 3230, 3425, 3572, 3995, 4465, 4658, 4700, 5206, 6439, 6460, 6850, 7990, 8075, 8930, 9316, 10412, 11645, 12878, 13015, 13700, 15181, 15980, 16150, 17860, 19975, 22325, 23290, 25756, 26030, 30362, 32195, 32300, 39950, 44251, 44650, 46580, 52060, 58225, 60724, 64390, 65075, 75905, 79900, 88502, 89300, 109463, 116450, 122341, 128780, 130150, 151810, 160975, 177004, 218926, 221255, 232900, 244682, 260300, 303620, 321950, 379525, 437852, 442510, 489364, 547315, 611705, 643900, 759050, 885020, 1094630, 1106275, 1223410, 1518100, 2079797, 2189260, 2212550, 2446820, 2736575, 3058525, 4159594, 4425100, 5473150, 6117050, 8319188, 10398985, 10946300, 12234100, 20797970, 41595940, 51994925, 103989850, 207979700]

約数ペア:

[(1, 207979700), (2, 103989850), (4, 51994925), (5, 41595940), (10, 20797970), (17, 12234100), (19, 10946300), (20, 10398985), (25, 8319188), (34, 6117050), (38, 5473150), (47, 4425100), (50, 4159594), (68, 3058525), (76, 2736575), (85, 2446820), (94, 2212550), (95, 2189260), (100, 2079797), (137, 1518100), (170, 1223410), (188, 1106275), (190, 1094630), (235, 885020), (274, 759050), (323, 643900), (340, 611705), (380, 547315), (425, 489364), (470, 442510), (475, 437852), (548, 379525), (646, 321950), (685, 303620), (799, 260300), (850, 244682), (893, 232900), (940, 221255), (950, 218926), (1175, 177004), (1292, 160975), (1370, 151810), (1598, 130150), (1615, 128780), (1700, 122341), (1786, 116450), (1900, 109463), (2329, 89300), (2350, 88502), (2603, 79900), (2740, 75905), (3196, 65075), (3230, 64390), (3425, 60724), (3572, 58225), (3995, 52060), (4465, 46580), (4658, 44650), (4700, 44251), (5206, 39950), (6439, 32300), (6460, 32195), (6850, 30362), (7990, 26030), (8075, 25756), (8930, 23290), (9316, 22325), (10412, 19975), (11645, 17860), (12878, 16150), (13015, 15980), (13700, 15181)]