78811670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2161}}^1$

素因数の和:2696

約数の個数: 32

約数和(自身を含む): 162513216

約数和(自身を除く): 83701546

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 521, 1042, 2161, 2605, 3647, 4322, 5210, 7294, 10805, 15127, 18235, 21610, 30254, 36470, 75635, 151270, 1125881, 2251762, 5629405, 7881167, 11258810, 15762334, 39405835, 78811670]

約数ペア:

[(1, 78811670), (2, 39405835), (5, 15762334), (7, 11258810), (10, 7881167), (14, 5629405), (35, 2251762), (70, 1125881), (521, 151270), (1042, 75635), (2161, 36470), (2605, 30254), (3647, 21610), (4322, 18235), (5210, 15127), (7294, 10805)]