20457900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{7577}}^1$

素因数の和:7600

約数の個数: 72

約数和(自身を含む): 65777040

約数和(自身を除く): 45319140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 90, 100, 108, 135, 150, 180, 225, 270, 300, 450, 540, 675, 900, 1350, 2700, 7577, 15154, 22731, 30308, 37885, 45462, 68193, 75770, 90924, 113655, 136386, 151540, 189425, 204579, 227310, 272772, 340965, 378850, 409158, 454620, 568275, 681930, 757700, 818316, 1022895, 1136550, 1363860, 1704825, 2045790, 2273100, 3409650, 4091580, 5114475, 6819300, 10228950, 20457900]

約数ペア:

[(1, 20457900), (2, 10228950), (3, 6819300), (4, 5114475), (5, 4091580), (6, 3409650), (9, 2273100), (10, 2045790), (12, 1704825), (15, 1363860), (18, 1136550), (20, 1022895), (25, 818316), (27, 757700), (30, 681930), (36, 568275), (45, 454620), (50, 409158), (54, 378850), (60, 340965), (75, 272772), (90, 227310), (100, 204579), (108, 189425), (135, 151540), (150, 136386), (180, 113655), (225, 90924), (270, 75770), (300, 68193), (450, 45462), (540, 37885), (675, 30308), (900, 22731), (1350, 15154), (2700, 7577)]