19701900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{7297}}^1$

素因数の和:7320

約数の個数: 72

約数和(自身を含む): 63346640

約数和(自身を除く): 43644740

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, 7297, 14594, 21891, 29188, 36485, 43782, 65673, 72970, 87564, 109455, 131346, 145940, 182425, 197019, 218910, 262692, 328365, 364850, 394038, 437820, 547275, 656730, 729700, 788076, 985095, 1094550, 1313460, 1641825, 1970190, 2189100, 3283650, 3940380, 4925475, 6567300, 9850950, 19701900]

約数ペア:

[(1, 19701900), (2, 9850950), (3, 6567300), (4, 4925475), (5, 3940380), (6, 3283650), (9, 2189100), (10, 1970190), (12, 1641825), (15, 1313460), (18, 1094550), (20, 985095), (25, 788076), (27, 729700), (30, 656730), (36, 547275), (45, 437820), (50, 394038), (54, 364850), (60, 328365), (75, 262692), (90, 218910), (100, 197019), (108, 182425), (135, 145940), (150, 131346), (180, 109455), (225, 87564), (270, 72970), (300, 65673), (450, 43782), (540, 36485), (675, 29188), (900, 21891), (1350, 14594), (2700, 7297)]