20542560

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42797}}^1$

素因数の和:42815

約数の個数: 48

約数和(自身を含む): 64710576

約数和(自身を除く): 44168016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42797, 85594, 128391, 171188, 213985, 256782, 342376, 427970, 513564, 641955, 684752, 855940, 1027128, 1283910, 1369504, 1711880, 2054256, 2567820, 3423760, 4108512, 5135640, 6847520, 10271280, 20542560]

約数ペア:

[(1, 20542560), (2, 10271280), (3, 6847520), (4, 5135640), (5, 4108512), (6, 3423760), (8, 2567820), (10, 2054256), (12, 1711880), (15, 1369504), (16, 1283910), (20, 1027128), (24, 855940), (30, 684752), (32, 641955), (40, 513564), (48, 427970), (60, 342376), (80, 256782), (96, 213985), (120, 171188), (160, 128391), (240, 85594), (480, 42797)]