20243720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{367}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 52462080

約数和(自身を除く): 32218360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 197, 280, 367, 394, 734, 788, 985, 1379, 1468, 1576, 1835, 1970, 2569, 2758, 2936, 3670, 3940, 5138, 5516, 6895, 7340, 7880, 10276, 11032, 12845, 13790, 14680, 20552, 25690, 27580, 51380, 55160, 72299, 102760, 144598, 289196, 361495, 506093, 578392, 722990, 1012186, 1445980, 2024372, 2530465, 2891960, 4048744, 5060930, 10121860, 20243720]

約数ペア:

[(1, 20243720), (2, 10121860), (4, 5060930), (5, 4048744), (7, 2891960), (8, 2530465), (10, 2024372), (14, 1445980), (20, 1012186), (28, 722990), (35, 578392), (40, 506093), (56, 361495), (70, 289196), (140, 144598), (197, 102760), (280, 72299), (367, 55160), (394, 51380), (734, 27580), (788, 25690), (985, 20552), (1379, 14680), (1468, 13790), (1576, 12845), (1835, 11032), (1970, 10276), (2569, 7880), (2758, 7340), (2936, 6895), (3670, 5516), (3940, 5138)]