20500560

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9491}}^1$

素因数の和:9513

約数の個数: 80

約数和(自身を含む): 70620480

約数和(自身を除く): 50119920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9491, 18982, 28473, 37964, 47455, 56946, 75928, 85419, 94910, 113892, 142365, 151856, 170838, 189820, 227784, 256257, 284730, 341676, 379640, 427095, 455568, 512514, 569460, 683352, 759280, 854190, 1025028, 1138920, 1281285, 1366704, 1708380, 2050056, 2277840, 2562570, 3416760, 4100112, 5125140, 6833520, 10250280, 20500560]

約数ペア:

[(1, 20500560), (2, 10250280), (3, 6833520), (4, 5125140), (5, 4100112), (6, 3416760), (8, 2562570), (9, 2277840), (10, 2050056), (12, 1708380), (15, 1366704), (16, 1281285), (18, 1138920), (20, 1025028), (24, 854190), (27, 759280), (30, 683352), (36, 569460), (40, 512514), (45, 455568), (48, 427095), (54, 379640), (60, 341676), (72, 284730), (80, 256257), (90, 227784), (108, 189820), (120, 170838), (135, 151856), (144, 142365), (180, 113892), (216, 94910), (240, 85419), (270, 75928), (360, 56946), (432, 47455), (540, 37964), (720, 28473), (1080, 18982), (2160, 9491)]