21255000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:151

約数の個数: 160

約数和(自身を含む): 72164400

約数和(自身を除く): 50909400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 25, 26, 30, 39, 40, 50, 52, 60, 65, 75, 78, 100, 104, 109, 120, 125, 130, 150, 156, 195, 200, 218, 250, 260, 300, 312, 325, 327, 375, 390, 436, 500, 520, 545, 600, 625, 650, 654, 750, 780, 872, 975, 1000, 1090, 1250, 1300, 1308, 1417, 1500, 1560, 1625, 1635, 1875, 1950, 2180, 2500, 2600, 2616, 2725, 2834, 3000, 3250, 3270, 3750, 3900, 4251, 4360, 4875, 5000, 5450, 5668, 6500, 6540, 7085, 7500, 7800, 8125, 8175, 8502, 9750, 10900, 11336, 13000, 13080, 13625, 14170, 15000, 16250, 16350, 17004, 19500, 21255, 21800, 24375, 27250, 28340, 32500, 32700, 34008, 35425, 39000, 40875, 42510, 48750, 54500, 56680, 65000, 65400, 68125, 70850, 81750, 85020, 97500, 106275, 109000, 136250, 141700, 163500, 170040, 177125, 195000, 204375, 212550, 272500, 283400, 327000, 354250, 408750, 425100, 531375, 545000, 708500, 817500, 850200, 885625, 1062750, 1417000, 1635000, 1771250, 2125500, 2656875, 3542500, 4251000, 5313750, 7085000, 10627500, 21255000]

約数ペア:

[(1, 21255000), (2, 10627500), (3, 7085000), (4, 5313750), (5, 4251000), (6, 3542500), (8, 2656875), (10, 2125500), (12, 1771250), (13, 1635000), (15, 1417000), (20, 1062750), (24, 885625), (25, 850200), (26, 817500), (30, 708500), (39, 545000), (40, 531375), (50, 425100), (52, 408750), (60, 354250), (65, 327000), (75, 283400), (78, 272500), (100, 212550), (104, 204375), (109, 195000), (120, 177125), (125, 170040), (130, 163500), (150, 141700), (156, 136250), (195, 109000), (200, 106275), (218, 97500), (250, 85020), (260, 81750), (300, 70850), (312, 68125), (325, 65400), (327, 65000), (375, 56680), (390, 54500), (436, 48750), (500, 42510), (520, 40875), (545, 39000), (600, 35425), (625, 34008), (650, 32700), (654, 32500), (750, 28340), (780, 27250), (872, 24375), (975, 21800), (1000, 21255), (1090, 19500), (1250, 17004), (1300, 16350), (1308, 16250), (1417, 15000), (1500, 14170), (1560, 13625), (1625, 13080), (1635, 13000), (1875, 11336), (1950, 10900), (2180, 9750), (2500, 8502), (2600, 8175), (2616, 8125), (2725, 7800), (2834, 7500), (3000, 7085), (3250, 6540), (3270, 6500), (3750, 5668), (3900, 5450), (4251, 5000), (4360, 4875)]