28403720

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{3967}}^1$

素因数の和:4157

約数の個数: 32

約数和(自身を含む): 64281600

約数和(自身を除く): 35877880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 3967, 7160, 7934, 15868, 19835, 31736, 39670, 79340, 158680, 710093, 1420186, 2840372, 3550465, 5680744, 7100930, 14201860, 28403720]

約数ペア:

[(1, 28403720), (2, 14201860), (4, 7100930), (5, 5680744), (8, 3550465), (10, 2840372), (20, 1420186), (40, 710093), (179, 158680), (358, 79340), (716, 39670), (895, 31736), (1432, 19835), (1790, 15868), (3580, 7934), (3967, 7160)]