20123278

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{233}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 15819122

約数列:

[1, 2, 7, 14, 31, 62, 199, 217, 233, 398, 434, 466, 1393, 1631, 2786, 3262, 6169, 7223, 12338, 14446, 43183, 46367, 50561, 86366, 92734, 101122, 324569, 649138, 1437377, 2874754, 10061639, 20123278]

約数ペア:

[(1, 20123278), (2, 10061639), (7, 2874754), (14, 1437377), (31, 649138), (62, 324569), (199, 101122), (217, 92734), (233, 86366), (398, 50561), (434, 46367), (466, 43183), (1393, 14446), (1631, 12338), (2786, 7223), (3262, 6169)]