20368075

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1279}}^1$

素因数の和:1316

約数の個数: 36

約数和(自身を含む): 31664640

約数和(自身を除く): 11296565

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 245, 325, 455, 637, 1225, 1279, 2275, 3185, 6395, 8953, 15925, 16627, 31975, 44765, 62671, 83135, 116389, 223825, 313355, 415675, 581945, 814723, 1566775, 2909725, 4073615, 20368075]

約数ペア:

[(1, 20368075), (5, 4073615), (7, 2909725), (13, 1566775), (25, 814723), (35, 581945), (49, 415675), (65, 313355), (91, 223825), (175, 116389), (245, 83135), (325, 62671), (455, 44765), (637, 31975), (1225, 16627), (1279, 15925), (2275, 8953), (3185, 6395)]