20778636

素因数分解:

$2^2\times 3^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 50168160

約数和(自身を除く): 29389524

約数列:

[1, 2, 3, 4, 6, 12, 41, 82, 123, 157, 164, 246, 269, 314, 471, 492, 538, 628, 807, 942, 1076, 1614, 1884, 3228, 6437, 11029, 12874, 19311, 22058, 25748, 33087, 38622, 42233, 44116, 66174, 77244, 84466, 126699, 132348, 168932, 253398, 506796, 1731553, 3463106, 5194659, 6926212, 10389318, 20778636]

約数ペア:

[(1, 20778636), (2, 10389318), (3, 6926212), (4, 5194659), (6, 3463106), (12, 1731553), (41, 506796), (82, 253398), (123, 168932), (157, 132348), (164, 126699), (246, 84466), (269, 77244), (314, 66174), (471, 44116), (492, 42233), (538, 38622), (628, 33087), (807, 25748), (942, 22058), (1076, 19311), (1614, 12874), (1884, 11029), (3228, 6437)]