20428907760

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28373483}}^1$

素因数の和:28373502

約数の個数: 60

約数和(自身を含む): 68607084312

約数和(自身を除く): 48178176552

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28373483, 56746966, 85120449, 113493932, 141867415, 170240898, 226987864, 255361347, 283734830, 340481796, 425602245, 453975728, 510722694, 567469660, 680963592, 851204490, 1021445388, 1134939320, 1276806735, 1361927184, 1702408980, 2042890776, 2269878640, 2553613470, 3404817960, 4085781552, 5107226940, 6809635920, 10214453880, 20428907760]

約数ペア:

[(1, 20428907760), (2, 10214453880), (3, 6809635920), (4, 5107226940), (5, 4085781552), (6, 3404817960), (8, 2553613470), (9, 2269878640), (10, 2042890776), (12, 1702408980), (15, 1361927184), (16, 1276806735), (18, 1134939320), (20, 1021445388), (24, 851204490), (30, 680963592), (36, 567469660), (40, 510722694), (45, 453975728), (48, 425602245), (60, 340481796), (72, 283734830), (80, 255361347), (90, 226987864), (120, 170240898), (144, 141867415), (180, 113493932), (240, 85120449), (360, 56746966), (720, 28373483)]