20518560

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14249}}^1$

素因数の和:14270

約数の個数: 72

約数和(自身を含む): 70024500

約数和(自身を除く): 49505940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14249, 28498, 42747, 56996, 71245, 85494, 113992, 128241, 142490, 170988, 213735, 227984, 256482, 284980, 341976, 427470, 455968, 512964, 569960, 641205, 683952, 854940, 1025928, 1139920, 1282410, 1367904, 1709880, 2051856, 2279840, 2564820, 3419760, 4103712, 5129640, 6839520, 10259280, 20518560]

約数ペア:

[(1, 20518560), (2, 10259280), (3, 6839520), (4, 5129640), (5, 4103712), (6, 3419760), (8, 2564820), (9, 2279840), (10, 2051856), (12, 1709880), (15, 1367904), (16, 1282410), (18, 1139920), (20, 1025928), (24, 854940), (30, 683952), (32, 641205), (36, 569960), (40, 512964), (45, 455968), (48, 427470), (60, 341976), (72, 284980), (80, 256482), (90, 227984), (96, 213735), (120, 170988), (144, 142490), (160, 128241), (180, 113992), (240, 85494), (288, 71245), (360, 56996), (480, 42747), (720, 28498), (1440, 14249)]