40487120

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1301}}^1$

素因数の和:1703

約数の個数: 40

約数和(自身を含む): 94447080

約数和(自身を除く): 53959960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1301, 1556, 1945, 2602, 3112, 3890, 5204, 6224, 6505, 7780, 10408, 13010, 15560, 20816, 26020, 31120, 52040, 104080, 506089, 1012178, 2024356, 2530445, 4048712, 5060890, 8097424, 10121780, 20243560, 40487120]

約数ペア:

[(1, 40487120), (2, 20243560), (4, 10121780), (5, 8097424), (8, 5060890), (10, 4048712), (16, 2530445), (20, 2024356), (40, 1012178), (80, 506089), (389, 104080), (778, 52040), (1301, 31120), (1556, 26020), (1945, 20816), (2602, 15560), (3112, 13010), (3890, 10408), (5204, 7780), (6224, 6505)]