20445000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:105

約数の個数: 160

約数和(自身を含む): 67478400

約数和(自身を除く): 47033400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 29, 30, 40, 47, 50, 58, 60, 75, 87, 94, 100, 116, 120, 125, 141, 145, 150, 174, 188, 200, 232, 235, 250, 282, 290, 300, 348, 375, 376, 435, 470, 500, 564, 580, 600, 625, 696, 705, 725, 750, 870, 940, 1000, 1128, 1160, 1175, 1250, 1363, 1410, 1450, 1500, 1740, 1875, 1880, 2175, 2350, 2500, 2726, 2820, 2900, 3000, 3480, 3525, 3625, 3750, 4089, 4350, 4700, 5000, 5452, 5640, 5800, 5875, 6815, 7050, 7250, 7500, 8178, 8700, 9400, 10875, 10904, 11750, 13630, 14100, 14500, 15000, 16356, 17400, 17625, 18125, 20445, 21750, 23500, 27260, 28200, 29000, 29375, 32712, 34075, 35250, 36250, 40890, 43500, 47000, 54375, 54520, 58750, 68150, 70500, 72500, 81780, 87000, 88125, 102225, 108750, 117500, 136300, 141000, 145000, 163560, 170375, 176250, 204450, 217500, 235000, 272600, 340750, 352500, 408900, 435000, 511125, 681500, 705000, 817800, 851875, 1022250, 1363000, 1703750, 2044500, 2555625, 3407500, 4089000, 5111250, 6815000, 10222500, 20445000]

約数ペア:

[(1, 20445000), (2, 10222500), (3, 6815000), (4, 5111250), (5, 4089000), (6, 3407500), (8, 2555625), (10, 2044500), (12, 1703750), (15, 1363000), (20, 1022250), (24, 851875), (25, 817800), (29, 705000), (30, 681500), (40, 511125), (47, 435000), (50, 408900), (58, 352500), (60, 340750), (75, 272600), (87, 235000), (94, 217500), (100, 204450), (116, 176250), (120, 170375), (125, 163560), (141, 145000), (145, 141000), (150, 136300), (174, 117500), (188, 108750), (200, 102225), (232, 88125), (235, 87000), (250, 81780), (282, 72500), (290, 70500), (300, 68150), (348, 58750), (375, 54520), (376, 54375), (435, 47000), (470, 43500), (500, 40890), (564, 36250), (580, 35250), (600, 34075), (625, 32712), (696, 29375), (705, 29000), (725, 28200), (750, 27260), (870, 23500), (940, 21750), (1000, 20445), (1128, 18125), (1160, 17625), (1175, 17400), (1250, 16356), (1363, 15000), (1410, 14500), (1450, 14100), (1500, 13630), (1740, 11750), (1875, 10904), (1880, 10875), (2175, 9400), (2350, 8700), (2500, 8178), (2726, 7500), (2820, 7250), (2900, 7050), (3000, 6815), (3480, 5875), (3525, 5800), (3625, 5640), (3750, 5452), (4089, 5000), (4350, 4700)]