918350720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{571}}^1$

素因数の和:956

約数の個数: 128

約数和(自身を含む): 2520460800

約数和(自身を除く): 1602110080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 359, 448, 560, 571, 640, 718, 896, 1120, 1142, 1436, 1795, 2240, 2284, 2513, 2855, 2872, 3590, 3997, 4480, 4568, 5026, 5710, 5744, 7180, 7994, 9136, 10052, 11420, 11488, 12565, 14360, 15988, 18272, 19985, 20104, 22840, 22976, 25130, 28720, 31976, 36544, 39970, 40208, 45680, 45952, 50260, 57440, 63952, 73088, 79940, 80416, 91360, 100520, 114880, 127904, 159880, 160832, 182720, 201040, 204989, 229760, 255808, 319760, 321664, 365440, 402080, 409978, 511616, 639520, 804160, 819956, 1024945, 1279040, 1434923, 1608320, 1639912, 2049890, 2558080, 2869846, 3279824, 4099780, 5739692, 6559648, 7174615, 8199560, 11479384, 13119296, 14349230, 16399120, 22958768, 26238592, 28698460, 32798240, 45917536, 57396920, 65596480, 91835072, 114793840, 131192960, 183670144, 229587680, 459175360, 918350720]

約数ペア:

[(1, 918350720), (2, 459175360), (4, 229587680), (5, 183670144), (7, 131192960), (8, 114793840), (10, 91835072), (14, 65596480), (16, 57396920), (20, 45917536), (28, 32798240), (32, 28698460), (35, 26238592), (40, 22958768), (56, 16399120), (64, 14349230), (70, 13119296), (80, 11479384), (112, 8199560), (128, 7174615), (140, 6559648), (160, 5739692), (224, 4099780), (280, 3279824), (320, 2869846), (359, 2558080), (448, 2049890), (560, 1639912), (571, 1608320), (640, 1434923), (718, 1279040), (896, 1024945), (1120, 819956), (1142, 804160), (1436, 639520), (1795, 511616), (2240, 409978), (2284, 402080), (2513, 365440), (2855, 321664), (2872, 319760), (3590, 255808), (3997, 229760), (4480, 204989), (4568, 201040), (5026, 182720), (5710, 160832), (5744, 159880), (7180, 127904), (7994, 114880), (9136, 100520), (10052, 91360), (11420, 80416), (11488, 79940), (12565, 73088), (14360, 63952), (15988, 57440), (18272, 50260), (19985, 45952), (20104, 45680), (22840, 40208), (22976, 39970), (25130, 36544), (28720, 31976)]