20518128

素因数分解:

$2^4\times 3^2\times {\mathrm{37}}^1\times {\mathrm{3851}}^1$

素因数の和:3902

約数の個数: 60

約数和(自身を含む): 58989528

約数和(自身を除く): 38471400

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 37, 48, 72, 74, 111, 144, 148, 222, 296, 333, 444, 592, 666, 888, 1332, 1776, 2664, 3851, 5328, 7702, 11553, 15404, 23106, 30808, 34659, 46212, 61616, 69318, 92424, 138636, 142487, 184848, 277272, 284974, 427461, 554544, 569948, 854922, 1139896, 1282383, 1709844, 2279792, 2564766, 3419688, 5129532, 6839376, 10259064, 20518128]

約数ペア:

[(1, 20518128), (2, 10259064), (3, 6839376), (4, 5129532), (6, 3419688), (8, 2564766), (9, 2279792), (12, 1709844), (16, 1282383), (18, 1139896), (24, 854922), (36, 569948), (37, 554544), (48, 427461), (72, 284974), (74, 277272), (111, 184848), (144, 142487), (148, 138636), (222, 92424), (296, 69318), (333, 61616), (444, 46212), (592, 34659), (666, 30808), (888, 23106), (1332, 15404), (1776, 11553), (2664, 7702), (3851, 5328)]