20992500

素因数分解:

$2^2\times 3^3\times 5^4\times {\mathrm{311}}^1$

素因数の和:344

約数の個数: 120

約数和(自身を含む): 68228160

約数和(自身を除く): 47235660

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, 125, 135, 150, 180, 225, 250, 270, 300, 311, 375, 450, 500, 540, 622, 625, 675, 750, 900, 933, 1125, 1244, 1250, 1350, 1500, 1555, 1866, 1875, 2250, 2500, 2700, 2799, 3110, 3375, 3732, 3750, 4500, 4665, 5598, 5625, 6220, 6750, 7500, 7775, 8397, 9330, 11196, 11250, 13500, 13995, 15550, 16794, 16875, 18660, 22500, 23325, 27990, 31100, 33588, 33750, 38875, 41985, 46650, 55980, 67500, 69975, 77750, 83970, 93300, 116625, 139950, 155500, 167940, 194375, 209925, 233250, 279900, 349875, 388750, 419850, 466500, 583125, 699750, 777500, 839700, 1049625, 1166250, 1399500, 1749375, 2099250, 2332500, 3498750, 4198500, 5248125, 6997500, 10496250, 20992500]

約数ペア:

[(1, 20992500), (2, 10496250), (3, 6997500), (4, 5248125), (5, 4198500), (6, 3498750), (9, 2332500), (10, 2099250), (12, 1749375), (15, 1399500), (18, 1166250), (20, 1049625), (25, 839700), (27, 777500), (30, 699750), (36, 583125), (45, 466500), (50, 419850), (54, 388750), (60, 349875), (75, 279900), (90, 233250), (100, 209925), (108, 194375), (125, 167940), (135, 155500), (150, 139950), (180, 116625), (225, 93300), (250, 83970), (270, 77750), (300, 69975), (311, 67500), (375, 55980), (450, 46650), (500, 41985), (540, 38875), (622, 33750), (625, 33588), (675, 31100), (750, 27990), (900, 23325), (933, 22500), (1125, 18660), (1244, 16875), (1250, 16794), (1350, 15550), (1500, 13995), (1555, 13500), (1866, 11250), (1875, 11196), (2250, 9330), (2500, 8397), (2700, 7775), (2799, 7500), (3110, 6750), (3375, 6220), (3732, 5625), (3750, 5598), (4500, 4665)]