42198140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29717}}^1$

素因数の和:29797

約数の個数: 24

約数和(自身を含む): 89867232

約数和(自身を除く): 47669092

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 29717, 59434, 118868, 148585, 297170, 594340, 2109907, 4219814, 8439628, 10549535, 21099070, 42198140]

約数ペア:

[(1, 42198140), (2, 21099070), (4, 10549535), (5, 8439628), (10, 4219814), (20, 2109907), (71, 594340), (142, 297170), (284, 148585), (355, 118868), (710, 59434), (1420, 29717)]