28013340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1109}}^1$

素因数の和:1542

約数の個数: 48

約数和(自身を含む): 78694560

約数和(自身を除く): 50681220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 421, 842, 1109, 1263, 1684, 2105, 2218, 2526, 3327, 4210, 4436, 5052, 5545, 6315, 6654, 8420, 11090, 12630, 13308, 16635, 22180, 25260, 33270, 66540, 466889, 933778, 1400667, 1867556, 2334445, 2801334, 4668890, 5602668, 7003335, 9337780, 14006670, 28013340]

約数ペア:

[(1, 28013340), (2, 14006670), (3, 9337780), (4, 7003335), (5, 5602668), (6, 4668890), (10, 2801334), (12, 2334445), (15, 1867556), (20, 1400667), (30, 933778), (60, 466889), (421, 66540), (842, 33270), (1109, 25260), (1263, 22180), (1684, 16635), (2105, 13308), (2218, 12630), (2526, 11090), (3327, 8420), (4210, 6654), (4436, 6315), (5052, 5545)]