20161937080

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1\times {\mathrm{641}}^1$

素因数の和:1045

約数の個数: 128

約数和(自身を含む): 47925043200

約数和(自身を除く): 27763106120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 179, 184, 191, 230, 358, 382, 460, 641, 716, 764, 895, 920, 955, 1282, 1432, 1528, 1790, 1910, 2564, 3205, 3580, 3820, 4117, 4393, 5128, 6410, 7160, 7640, 8234, 8786, 12820, 14743, 16468, 17572, 20585, 21965, 25640, 29486, 32936, 34189, 35144, 41170, 43930, 58972, 68378, 73715, 82340, 87860, 114739, 117944, 122431, 136756, 147430, 164680, 170945, 175720, 229478, 244862, 273512, 294860, 341890, 458956, 489724, 573695, 589720, 612155, 683780, 786347, 917912, 979448, 1147390, 1224310, 1367560, 1572694, 2294780, 2448620, 2638997, 2815913, 3145388, 3931735, 4589560, 4897240, 5277994, 5631826, 6290776, 7863470, 10555988, 11263652, 13194985, 14079565, 15726940, 21111976, 21915149, 22527304, 26389970, 28159130, 31453880, 43830298, 52779940, 56318260, 87660596, 105559880, 109575745, 112636520, 175321192, 219151490, 438302980, 504048427, 876605960, 1008096854, 2016193708, 2520242135, 4032387416, 5040484270, 10080968540, 20161937080]

約数ペア:

[(1, 20161937080), (2, 10080968540), (4, 5040484270), (5, 4032387416), (8, 2520242135), (10, 2016193708), (20, 1008096854), (23, 876605960), (40, 504048427), (46, 438302980), (92, 219151490), (115, 175321192), (179, 112636520), (184, 109575745), (191, 105559880), (230, 87660596), (358, 56318260), (382, 52779940), (460, 43830298), (641, 31453880), (716, 28159130), (764, 26389970), (895, 22527304), (920, 21915149), (955, 21111976), (1282, 15726940), (1432, 14079565), (1528, 13194985), (1790, 11263652), (1910, 10555988), (2564, 7863470), (3205, 6290776), (3580, 5631826), (3820, 5277994), (4117, 4897240), (4393, 4589560), (5128, 3931735), (6410, 3145388), (7160, 2815913), (7640, 2638997), (8234, 2448620), (8786, 2294780), (12820, 1572694), (14743, 1367560), (16468, 1224310), (17572, 1147390), (20585, 979448), (21965, 917912), (25640, 786347), (29486, 683780), (32936, 612155), (34189, 589720), (35144, 573695), (41170, 489724), (43930, 458956), (58972, 341890), (68378, 294860), (73715, 273512), (82340, 244862), (87860, 229478), (114739, 175720), (117944, 170945), (122431, 164680), (136756, 147430)]