201913880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 540518400

約数和(自身を除く): 338604520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 47, 56, 67, 70, 94, 134, 140, 188, 229, 235, 268, 280, 329, 335, 376, 458, 469, 470, 536, 658, 670, 916, 938, 940, 1145, 1316, 1340, 1603, 1645, 1832, 1876, 1880, 2290, 2345, 2632, 2680, 3149, 3206, 3290, 3752, 4580, 4690, 6298, 6412, 6580, 8015, 9160, 9380, 10763, 12596, 12824, 13160, 15343, 15745, 16030, 18760, 21526, 22043, 25192, 30686, 31490, 32060, 43052, 44086, 53815, 61372, 62980, 64120, 75341, 76715, 86104, 88172, 107401, 107630, 110215, 122744, 125960, 150682, 153430, 176344, 214802, 215260, 220430, 301364, 306860, 376705, 429604, 430520, 440860, 537005, 602728, 613720, 721121, 753410, 859208, 881720, 1074010, 1442242, 1506820, 2148020, 2884484, 3013640, 3605605, 4296040, 5047847, 5768968, 7211210, 10095694, 14422420, 20191388, 25239235, 28844840, 40382776, 50478470, 100956940, 201913880]

約数ペア:

[(1, 201913880), (2, 100956940), (4, 50478470), (5, 40382776), (7, 28844840), (8, 25239235), (10, 20191388), (14, 14422420), (20, 10095694), (28, 7211210), (35, 5768968), (40, 5047847), (47, 4296040), (56, 3605605), (67, 3013640), (70, 2884484), (94, 2148020), (134, 1506820), (140, 1442242), (188, 1074010), (229, 881720), (235, 859208), (268, 753410), (280, 721121), (329, 613720), (335, 602728), (376, 537005), (458, 440860), (469, 430520), (470, 429604), (536, 376705), (658, 306860), (670, 301364), (916, 220430), (938, 215260), (940, 214802), (1145, 176344), (1316, 153430), (1340, 150682), (1603, 125960), (1645, 122744), (1832, 110215), (1876, 107630), (1880, 107401), (2290, 88172), (2345, 86104), (2632, 76715), (2680, 75341), (3149, 64120), (3206, 62980), (3290, 61372), (3752, 53815), (4580, 44086), (4690, 43052), (6298, 32060), (6412, 31490), (6580, 30686), (8015, 25192), (9160, 22043), (9380, 21526), (10763, 18760), (12596, 16030), (12824, 15745), (13160, 15343)]