39939740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{919}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 87635520

約数和(自身を除く): 47695780

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 530, 820, 919, 1060, 1838, 2173, 3676, 4346, 4595, 8692, 9190, 10865, 18380, 21730, 37679, 43460, 48707, 75358, 97414, 150716, 188395, 194828, 243535, 376790, 487070, 753580, 974140, 1996987, 3993974, 7987948, 9984935, 19969870, 39939740]

約数ペア:

[(1, 39939740), (2, 19969870), (4, 9984935), (5, 7987948), (10, 3993974), (20, 1996987), (41, 974140), (53, 753580), (82, 487070), (106, 376790), (164, 243535), (205, 194828), (212, 188395), (265, 150716), (410, 97414), (530, 75358), (820, 48707), (919, 43460), (1060, 37679), (1838, 21730), (2173, 18380), (3676, 10865), (4346, 9190), (4595, 8692)]