20043520

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2237}}^1$

素因数の和:2265

約数の個数: 72

約数和(自身を含む): 54893664

約数和(自身を除く): 34850144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2237, 2240, 4474, 4480, 8948, 8960, 11185, 15659, 17896, 22370, 31318, 35792, 44740, 62636, 71584, 78295, 89480, 125272, 143168, 156590, 178960, 250544, 286336, 313180, 357920, 501088, 572672, 626360, 715840, 1002176, 1252720, 1431680, 2004352, 2505440, 2863360, 4008704, 5010880, 10021760, 20043520]

約数ペア:

[(1, 20043520), (2, 10021760), (4, 5010880), (5, 4008704), (7, 2863360), (8, 2505440), (10, 2004352), (14, 1431680), (16, 1252720), (20, 1002176), (28, 715840), (32, 626360), (35, 572672), (40, 501088), (56, 357920), (64, 313180), (70, 286336), (80, 250544), (112, 178960), (128, 156590), (140, 143168), (160, 125272), (224, 89480), (256, 78295), (280, 71584), (320, 62636), (448, 44740), (560, 35792), (640, 31318), (896, 22370), (1120, 17896), (1280, 15659), (1792, 11185), (2237, 8960), (2240, 8948), (4474, 4480)]