71678715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{1553}}^1$

素因数の和:1759

約数の個数: 32

約数和(自身を含む): 122181696

約数和(自身を除く): 50502981

約数列:

[1, 3, 5, 15, 17, 51, 85, 181, 255, 543, 905, 1553, 2715, 3077, 4659, 7765, 9231, 15385, 23295, 26401, 46155, 79203, 132005, 281093, 396015, 843279, 1405465, 4216395, 4778581, 14335743, 23892905, 71678715]

約数ペア:

[(1, 71678715), (3, 23892905), (5, 14335743), (15, 4778581), (17, 4216395), (51, 1405465), (85, 843279), (181, 396015), (255, 281093), (543, 132005), (905, 79203), (1553, 46155), (2715, 26401), (3077, 23295), (4659, 15385), (7765, 9231)]