28157460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1069}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 79094400

約数和(自身を除く): 50936940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 439, 878, 1069, 1317, 1756, 2138, 2195, 2634, 3207, 4276, 4390, 5268, 5345, 6414, 6585, 8780, 10690, 12828, 13170, 16035, 21380, 26340, 32070, 64140, 469291, 938582, 1407873, 1877164, 2346455, 2815746, 4692910, 5631492, 7039365, 9385820, 14078730, 28157460]

約数ペア:

[(1, 28157460), (2, 14078730), (3, 9385820), (4, 7039365), (5, 5631492), (6, 4692910), (10, 2815746), (12, 2346455), (15, 1877164), (20, 1407873), (30, 938582), (60, 469291), (439, 64140), (878, 32070), (1069, 26340), (1317, 21380), (1756, 16035), (2138, 13170), (2195, 12828), (2634, 10690), (3207, 8780), (4276, 6585), (4390, 6414), (5268, 5345)]