81915484

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{2137}}^1$

素因数の和:2222

約数の個数: 36

約数和(自身を含む): 168457296

約数和(自身を除く): 86541812

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 1369, 2137, 2738, 4274, 5476, 8548, 9583, 14959, 19166, 29918, 38332, 59836, 79069, 158138, 316276, 553483, 1106966, 2213932, 2925553, 5851106, 11702212, 20478871, 40957742, 81915484]

約数ペア:

[(1, 81915484), (2, 40957742), (4, 20478871), (7, 11702212), (14, 5851106), (28, 2925553), (37, 2213932), (74, 1106966), (148, 553483), (259, 316276), (518, 158138), (1036, 79069), (1369, 59836), (2137, 38332), (2738, 29918), (4274, 19166), (5476, 14959), (8548, 9583)]