1279237778

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{189967}}^1$

素因数の和:190026

約数の個数: 32

約数和(自身を含む): 2425511424

約数和(自身を除く): 1146273646

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 182, 259, 481, 518, 962, 3367, 6734, 189967, 379934, 1329769, 2469571, 2659538, 4939142, 7028779, 14057558, 17286997, 34573994, 49201453, 91374127, 98402906, 182748254, 639618889, 1279237778]

約数ペア:

[(1, 1279237778), (2, 639618889), (7, 182748254), (13, 98402906), (14, 91374127), (26, 49201453), (37, 34573994), (74, 17286997), (91, 14057558), (182, 7028779), (259, 4939142), (481, 2659538), (518, 2469571), (962, 1329769), (3367, 379934), (6734, 189967)]