20456236

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 20186324

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 71, 76, 142, 223, 284, 323, 446, 646, 892, 1207, 1292, 1349, 2414, 2698, 3791, 4237, 4828, 5396, 7582, 8474, 15164, 15833, 16948, 22933, 31666, 45866, 63332, 72029, 91732, 144058, 269161, 288116, 300827, 538322, 601654, 1076644, 1203308, 5114059, 10228118, 20456236]

約数ペア:

[(1, 20456236), (2, 10228118), (4, 5114059), (17, 1203308), (19, 1076644), (34, 601654), (38, 538322), (68, 300827), (71, 288116), (76, 269161), (142, 144058), (223, 91732), (284, 72029), (323, 63332), (446, 45866), (646, 31666), (892, 22933), (1207, 16948), (1292, 15833), (1349, 15164), (2414, 8474), (2698, 7582), (3791, 5396), (4237, 4828)]