199431680

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:420

約数の個数: 160

約数和(自身を含む): 565678080

約数和(自身を除く): 366246400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 280, 310, 320, 359, 434, 448, 496, 512, 560, 620, 640, 718, 868, 896, 992, 1085, 1120, 1240, 1280, 1436, 1736, 1792, 1795, 1984, 2170, 2240, 2480, 2513, 2560, 2872, 3472, 3584, 3590, 3968, 4340, 4480, 4960, 5026, 5744, 6944, 7180, 7936, 8680, 8960, 9920, 10052, 11129, 11488, 12565, 13888, 14360, 15872, 17360, 17920, 19840, 20104, 22258, 22976, 25130, 27776, 28720, 34720, 39680, 40208, 44516, 45952, 50260, 55552, 55645, 57440, 69440, 77903, 79360, 80416, 89032, 91904, 100520, 111104, 111290, 114880, 138880, 155806, 160832, 178064, 183808, 201040, 222580, 229760, 277760, 311612, 321664, 356128, 389515, 402080, 445160, 459520, 555520, 623224, 643328, 712256, 779030, 804160, 890320, 919040, 1246448, 1286656, 1424512, 1558060, 1608320, 1780640, 2492896, 2849024, 3116120, 3216640, 3561280, 4985792, 5698048, 6232240, 6433280, 7122560, 9971584, 12464480, 14245120, 19943168, 24928960, 28490240, 39886336, 49857920, 99715840, 199431680]

約数ペア:

[(1, 199431680), (2, 99715840), (4, 49857920), (5, 39886336), (7, 28490240), (8, 24928960), (10, 19943168), (14, 14245120), (16, 12464480), (20, 9971584), (28, 7122560), (31, 6433280), (32, 6232240), (35, 5698048), (40, 4985792), (56, 3561280), (62, 3216640), (64, 3116120), (70, 2849024), (80, 2492896), (112, 1780640), (124, 1608320), (128, 1558060), (140, 1424512), (155, 1286656), (160, 1246448), (217, 919040), (224, 890320), (248, 804160), (256, 779030), (280, 712256), (310, 643328), (320, 623224), (359, 555520), (434, 459520), (448, 445160), (496, 402080), (512, 389515), (560, 356128), (620, 321664), (640, 311612), (718, 277760), (868, 229760), (896, 222580), (992, 201040), (1085, 183808), (1120, 178064), (1240, 160832), (1280, 155806), (1436, 138880), (1736, 114880), (1792, 111290), (1795, 111104), (1984, 100520), (2170, 91904), (2240, 89032), (2480, 80416), (2513, 79360), (2560, 77903), (2872, 69440), (3472, 57440), (3584, 55645), (3590, 55552), (3968, 50260), (4340, 45952), (4480, 44516), (4960, 40208), (5026, 39680), (5744, 34720), (6944, 28720), (7180, 27776), (7936, 25130), (8680, 22976), (8960, 22258), (9920, 20104), (10052, 19840), (11129, 17920), (11488, 17360), (12565, 15872), (13888, 14360)]