21990000

素因数分解:

$2^4\times 3^1\times 5^4\times {\mathrm{733}}^1$

素因数の和:764

約数の個数: 100

約数和(自身を含む): 71083496

約数和(自身を除く): 49093496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 150, 200, 240, 250, 300, 375, 400, 500, 600, 625, 733, 750, 1000, 1200, 1250, 1466, 1500, 1875, 2000, 2199, 2500, 2932, 3000, 3665, 3750, 4398, 5000, 5864, 6000, 7330, 7500, 8796, 10000, 10995, 11728, 14660, 15000, 17592, 18325, 21990, 29320, 30000, 35184, 36650, 43980, 54975, 58640, 73300, 87960, 91625, 109950, 146600, 175920, 183250, 219900, 274875, 293200, 366500, 439800, 458125, 549750, 733000, 879600, 916250, 1099500, 1374375, 1466000, 1832500, 2199000, 2748750, 3665000, 4398000, 5497500, 7330000, 10995000, 21990000]

約数ペア:

[(1, 21990000), (2, 10995000), (3, 7330000), (4, 5497500), (5, 4398000), (6, 3665000), (8, 2748750), (10, 2199000), (12, 1832500), (15, 1466000), (16, 1374375), (20, 1099500), (24, 916250), (25, 879600), (30, 733000), (40, 549750), (48, 458125), (50, 439800), (60, 366500), (75, 293200), (80, 274875), (100, 219900), (120, 183250), (125, 175920), (150, 146600), (200, 109950), (240, 91625), (250, 87960), (300, 73300), (375, 58640), (400, 54975), (500, 43980), (600, 36650), (625, 35184), (733, 30000), (750, 29320), (1000, 21990), (1200, 18325), (1250, 17592), (1466, 15000), (1500, 14660), (1875, 11728), (2000, 10995), (2199, 10000), (2500, 8796), (2932, 7500), (3000, 7330), (3665, 6000), (3750, 5864), (4398, 5000)]