28157560

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9643}}^1$

素因数の和:9727

約数の個数: 32

約数和(自身を含む): 64229040

約数和(自身を除く): 36071480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 9643, 19286, 38572, 48215, 77144, 96430, 192860, 385720, 703939, 1407878, 2815756, 3519695, 5631512, 7039390, 14078780, 28157560]

約数ペア:

[(1, 28157560), (2, 14078780), (4, 7039390), (5, 5631512), (8, 3519695), (10, 2815756), (20, 1407878), (40, 703939), (73, 385720), (146, 192860), (292, 96430), (365, 77144), (584, 48215), (730, 38572), (1460, 19286), (2920, 9643)]