2002000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:54

約数の個数: 160

約数和(自身を含む): 6499584

約数和(自身を除く): 4497584

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 35, 40, 44, 50, 52, 55, 56, 65, 70, 77, 80, 88, 91, 100, 104, 110, 112, 125, 130, 140, 143, 154, 175, 176, 182, 200, 208, 220, 250, 260, 275, 280, 286, 308, 325, 350, 364, 385, 400, 440, 455, 500, 520, 550, 560, 572, 616, 650, 700, 715, 728, 770, 875, 880, 910, 1000, 1001, 1040, 1100, 1144, 1232, 1300, 1375, 1400, 1430, 1456, 1540, 1625, 1750, 1820, 1925, 2000, 2002, 2200, 2275, 2288, 2600, 2750, 2800, 2860, 3080, 3250, 3500, 3575, 3640, 3850, 4004, 4400, 4550, 5005, 5200, 5500, 5720, 6160, 6500, 7000, 7150, 7280, 7700, 8008, 9100, 9625, 10010, 11000, 11375, 11440, 13000, 14000, 14300, 15400, 16016, 17875, 18200, 19250, 20020, 22000, 22750, 25025, 26000, 28600, 30800, 35750, 36400, 38500, 40040, 45500, 50050, 57200, 71500, 77000, 80080, 91000, 100100, 125125, 143000, 154000, 182000, 200200, 250250, 286000, 400400, 500500, 1001000, 2002000]

約数ペア:

[(1, 2002000), (2, 1001000), (4, 500500), (5, 400400), (7, 286000), (8, 250250), (10, 200200), (11, 182000), (13, 154000), (14, 143000), (16, 125125), (20, 100100), (22, 91000), (25, 80080), (26, 77000), (28, 71500), (35, 57200), (40, 50050), (44, 45500), (50, 40040), (52, 38500), (55, 36400), (56, 35750), (65, 30800), (70, 28600), (77, 26000), (80, 25025), (88, 22750), (91, 22000), (100, 20020), (104, 19250), (110, 18200), (112, 17875), (125, 16016), (130, 15400), (140, 14300), (143, 14000), (154, 13000), (175, 11440), (176, 11375), (182, 11000), (200, 10010), (208, 9625), (220, 9100), (250, 8008), (260, 7700), (275, 7280), (280, 7150), (286, 7000), (308, 6500), (325, 6160), (350, 5720), (364, 5500), (385, 5200), (400, 5005), (440, 4550), (455, 4400), (500, 4004), (520, 3850), (550, 3640), (560, 3575), (572, 3500), (616, 3250), (650, 3080), (700, 2860), (715, 2800), (728, 2750), (770, 2600), (875, 2288), (880, 2275), (910, 2200), (1000, 2002), (1001, 2000), (1040, 1925), (1100, 1820), (1144, 1750), (1232, 1625), (1300, 1540), (1375, 1456), (1400, 1430)]