27678455

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 39688704

約数和(自身を除く): 12010249

約数列:

[1, 5, 7, 35, 43, 53, 215, 265, 301, 347, 371, 1505, 1735, 1855, 2279, 2429, 11395, 12145, 14921, 15953, 18391, 74605, 79765, 91955, 104447, 128737, 522235, 643685, 790813, 3954065, 5535691, 27678455]

約数ペア:

[(1, 27678455), (5, 5535691), (7, 3954065), (35, 790813), (43, 643685), (53, 522235), (215, 128737), (265, 104447), (301, 91955), (347, 79765), (371, 74605), (1505, 18391), (1735, 15953), (1855, 14921), (2279, 12145), (2429, 11395)]