18936680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67631}}^1$

素因数の和:67649

約数の個数: 32

約数和(自身を含む): 48695040

約数和(自身を除く): 29758360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67631, 135262, 270524, 338155, 473417, 541048, 676310, 946834, 1352620, 1893668, 2367085, 2705240, 3787336, 4734170, 9468340, 18936680]

約数ペア:

[(1, 18936680), (2, 9468340), (4, 4734170), (5, 3787336), (7, 2705240), (8, 2367085), (10, 1893668), (14, 1352620), (20, 946834), (28, 676310), (35, 541048), (40, 473417), (56, 338155), (70, 270524), (140, 135262), (280, 67631)]