87138478

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{1129}}^1$

素因数の和:1324

約数の個数: 32

約数和(自身を含む): 154584000

約数和(自身を除く): 67445522

約数列:

[1, 2, 7, 14, 37, 74, 149, 259, 298, 518, 1043, 1129, 2086, 2258, 5513, 7903, 11026, 15806, 38591, 41773, 77182, 83546, 168221, 292411, 336442, 584822, 1177547, 2355094, 6224177, 12448354, 43569239, 87138478]

約数ペア:

[(1, 87138478), (2, 43569239), (7, 12448354), (14, 6224177), (37, 2355094), (74, 1177547), (149, 584822), (259, 336442), (298, 292411), (518, 168221), (1043, 83546), (1129, 77182), (2086, 41773), (2258, 38591), (5513, 15806), (7903, 11026)]