1440320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{643}}^1$

素因数の和:667

約数の個数: 56

約数和(自身を含む): 3925824

約数和(自身を除く): 2485504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 643, 1120, 1286, 2240, 2572, 3215, 4501, 5144, 6430, 9002, 10288, 12860, 18004, 20576, 22505, 25720, 36008, 41152, 45010, 51440, 72016, 90020, 102880, 144032, 180040, 205760, 288064, 360080, 720160, 1440320]

約数ペア:

[(1, 1440320), (2, 720160), (4, 360080), (5, 288064), (7, 205760), (8, 180040), (10, 144032), (14, 102880), (16, 90020), (20, 72016), (28, 51440), (32, 45010), (35, 41152), (40, 36008), (56, 25720), (64, 22505), (70, 20576), (80, 18004), (112, 12860), (140, 10288), (160, 9002), (224, 6430), (280, 5144), (320, 4501), (448, 3215), (560, 2572), (643, 2240), (1120, 1286)]