18931600

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 120

約数和(自身を含む): 49818240

約数和(自身を除く): 30886640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 47, 50, 53, 76, 80, 94, 95, 100, 106, 152, 188, 190, 200, 212, 235, 265, 304, 376, 380, 400, 424, 470, 475, 530, 752, 760, 848, 893, 940, 950, 1007, 1060, 1175, 1325, 1520, 1786, 1880, 1900, 2014, 2120, 2350, 2491, 2650, 3572, 3760, 3800, 4028, 4240, 4465, 4700, 4982, 5035, 5300, 7144, 7600, 8056, 8930, 9400, 9964, 10070, 10600, 12455, 14288, 16112, 17860, 18800, 19928, 20140, 21200, 22325, 24910, 25175, 35720, 39856, 40280, 44650, 47329, 49820, 50350, 62275, 71440, 80560, 89300, 94658, 99640, 100700, 124550, 178600, 189316, 199280, 201400, 236645, 249100, 357200, 378632, 402800, 473290, 498200, 757264, 946580, 996400, 1183225, 1893160, 2366450, 3786320, 4732900, 9465800, 18931600]

約数ペア:

[(1, 18931600), (2, 9465800), (4, 4732900), (5, 3786320), (8, 2366450), (10, 1893160), (16, 1183225), (19, 996400), (20, 946580), (25, 757264), (38, 498200), (40, 473290), (47, 402800), (50, 378632), (53, 357200), (76, 249100), (80, 236645), (94, 201400), (95, 199280), (100, 189316), (106, 178600), (152, 124550), (188, 100700), (190, 99640), (200, 94658), (212, 89300), (235, 80560), (265, 71440), (304, 62275), (376, 50350), (380, 49820), (400, 47329), (424, 44650), (470, 40280), (475, 39856), (530, 35720), (752, 25175), (760, 24910), (848, 22325), (893, 21200), (940, 20140), (950, 19928), (1007, 18800), (1060, 17860), (1175, 16112), (1325, 14288), (1520, 12455), (1786, 10600), (1880, 10070), (1900, 9964), (2014, 9400), (2120, 8930), (2350, 8056), (2491, 7600), (2650, 7144), (3572, 5300), (3760, 5035), (3800, 4982), (4028, 4700), (4240, 4465)]