721520

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:353

約数の個数: 40

約数和(自身を含む): 1740960

約数和(自身を除く): 1019440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 311, 464, 580, 622, 1160, 1244, 1555, 2320, 2488, 3110, 4976, 6220, 9019, 12440, 18038, 24880, 36076, 45095, 72152, 90190, 144304, 180380, 360760, 721520]

約数ペア:

[(1, 721520), (2, 360760), (4, 180380), (5, 144304), (8, 90190), (10, 72152), (16, 45095), (20, 36076), (29, 24880), (40, 18038), (58, 12440), (80, 9019), (116, 6220), (145, 4976), (232, 3110), (290, 2488), (311, 2320), (464, 1555), (580, 1244), (622, 1160)]