20385590

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1453}}^1$

素因数の和:1544

約数の個数: 32

約数和(自身を含む): 38943936

約数和(自身を除く): 18558346

約数列:

[1, 2, 5, 10, 23, 46, 61, 115, 122, 230, 305, 610, 1403, 1453, 2806, 2906, 7015, 7265, 14030, 14530, 33419, 66838, 88633, 167095, 177266, 334190, 443165, 886330, 2038559, 4077118, 10192795, 20385590]

約数ペア:

[(1, 20385590), (2, 10192795), (5, 4077118), (10, 2038559), (23, 886330), (46, 443165), (61, 334190), (115, 177266), (122, 167095), (230, 88633), (305, 66838), (610, 33419), (1403, 14530), (1453, 14030), (2806, 7265), (2906, 7015)]