18997130

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:398

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 16081270

約数列:

[1, 2, 5, 10, 79, 139, 158, 173, 278, 346, 395, 695, 790, 865, 1390, 1730, 10981, 13667, 21962, 24047, 27334, 48094, 54905, 68335, 109810, 120235, 136670, 240470, 1899713, 3799426, 9498565, 18997130]

約数ペア:

[(1, 18997130), (2, 9498565), (5, 3799426), (10, 1899713), (79, 240470), (139, 136670), (158, 120235), (173, 109810), (278, 68335), (346, 54905), (395, 48094), (695, 27334), (790, 24047), (865, 21962), (1390, 13667), (1730, 10981)]