18748220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{769}}^1$

素因数の和:854

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 23164420

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 53, 92, 106, 115, 212, 230, 265, 460, 530, 769, 1060, 1219, 1538, 2438, 3076, 3845, 4876, 6095, 7690, 12190, 15380, 17687, 24380, 35374, 40757, 70748, 81514, 88435, 163028, 176870, 203785, 353740, 407570, 815140, 937411, 1874822, 3749644, 4687055, 9374110, 18748220]

約数ペア:

[(1, 18748220), (2, 9374110), (4, 4687055), (5, 3749644), (10, 1874822), (20, 937411), (23, 815140), (46, 407570), (53, 353740), (92, 203785), (106, 176870), (115, 163028), (212, 88435), (230, 81514), (265, 70748), (460, 40757), (530, 35374), (769, 24380), (1060, 17687), (1219, 15380), (1538, 12190), (2438, 7690), (3076, 6095), (3845, 4876)]