18941860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7121}}^1$

素因数の和:7156

約数の個数: 48

約数和(自身を含む): 47859840

約数和(自身を除く): 28917980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7121, 14242, 28484, 35605, 49847, 71210, 99694, 135299, 142420, 199388, 249235, 270598, 498470, 541196, 676495, 947093, 996940, 1352990, 1894186, 2705980, 3788372, 4735465, 9470930, 18941860]

約数ペア:

[(1, 18941860), (2, 9470930), (4, 4735465), (5, 3788372), (7, 2705980), (10, 1894186), (14, 1352990), (19, 996940), (20, 947093), (28, 676495), (35, 541196), (38, 498470), (70, 270598), (76, 249235), (95, 199388), (133, 142420), (140, 135299), (190, 99694), (266, 71210), (380, 49847), (532, 35605), (665, 28484), (1330, 14242), (2660, 7121)]