198465680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:481

約数の個数: 120

約数和(自身を含む): 541592568

約数和(自身を除く): 343126888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 197, 245, 257, 280, 392, 394, 490, 514, 560, 784, 788, 980, 985, 1028, 1285, 1379, 1576, 1799, 1960, 1970, 2056, 2570, 2758, 3152, 3598, 3920, 3940, 4112, 5140, 5516, 6895, 7196, 7880, 8995, 9653, 10280, 11032, 12593, 13790, 14392, 15760, 17990, 19306, 20560, 22064, 25186, 27580, 28784, 35980, 38612, 48265, 50372, 50629, 55160, 62965, 71960, 77224, 96530, 100744, 101258, 110320, 125930, 143920, 154448, 193060, 201488, 202516, 251860, 253145, 354403, 386120, 405032, 503720, 506290, 708806, 772240, 810064, 1007440, 1012580, 1417612, 1772015, 2025160, 2480821, 2835224, 3544030, 4050320, 4961642, 5670448, 7088060, 9923284, 12404105, 14176120, 19846568, 24808210, 28352240, 39693136, 49616420, 99232840, 198465680]

約数ペア:

[(1, 198465680), (2, 99232840), (4, 49616420), (5, 39693136), (7, 28352240), (8, 24808210), (10, 19846568), (14, 14176120), (16, 12404105), (20, 9923284), (28, 7088060), (35, 5670448), (40, 4961642), (49, 4050320), (56, 3544030), (70, 2835224), (80, 2480821), (98, 2025160), (112, 1772015), (140, 1417612), (196, 1012580), (197, 1007440), (245, 810064), (257, 772240), (280, 708806), (392, 506290), (394, 503720), (490, 405032), (514, 386120), (560, 354403), (784, 253145), (788, 251860), (980, 202516), (985, 201488), (1028, 193060), (1285, 154448), (1379, 143920), (1576, 125930), (1799, 110320), (1960, 101258), (1970, 100744), (2056, 96530), (2570, 77224), (2758, 71960), (3152, 62965), (3598, 55160), (3920, 50629), (3940, 50372), (4112, 48265), (5140, 38612), (5516, 35980), (6895, 28784), (7196, 27580), (7880, 25186), (8995, 22064), (9653, 20560), (10280, 19306), (11032, 17990), (12593, 15760), (13790, 14392)]