1413320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 3223800

約数和(自身を除く): 1810480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 397, 445, 712, 794, 890, 1588, 1780, 1985, 3176, 3560, 3970, 7940, 15880, 35333, 70666, 141332, 176665, 282664, 353330, 706660, 1413320]

約数ペア:

[(1, 1413320), (2, 706660), (4, 353330), (5, 282664), (8, 176665), (10, 141332), (20, 70666), (40, 35333), (89, 15880), (178, 7940), (356, 3970), (397, 3560), (445, 3176), (712, 1985), (794, 1780), (890, 1588)]