2688400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:89

約数の個数: 120

約数和(自身を含む): 7749504

約数和(自身を除く): 5061104

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 40, 44, 47, 50, 52, 55, 65, 80, 88, 94, 100, 104, 110, 130, 143, 176, 188, 200, 208, 220, 235, 260, 275, 286, 325, 376, 400, 440, 470, 517, 520, 550, 572, 611, 650, 715, 752, 880, 940, 1034, 1040, 1100, 1144, 1175, 1222, 1300, 1430, 1880, 2068, 2200, 2288, 2350, 2444, 2585, 2600, 2860, 3055, 3575, 3760, 4136, 4400, 4700, 4888, 5170, 5200, 5720, 6110, 6721, 7150, 8272, 9400, 9776, 10340, 11440, 12220, 12925, 13442, 14300, 15275, 18800, 20680, 24440, 25850, 26884, 28600, 30550, 33605, 41360, 48880, 51700, 53768, 57200, 61100, 67210, 103400, 107536, 122200, 134420, 168025, 206800, 244400, 268840, 336050, 537680, 672100, 1344200, 2688400]

約数ペア:

[(1, 2688400), (2, 1344200), (4, 672100), (5, 537680), (8, 336050), (10, 268840), (11, 244400), (13, 206800), (16, 168025), (20, 134420), (22, 122200), (25, 107536), (26, 103400), (40, 67210), (44, 61100), (47, 57200), (50, 53768), (52, 51700), (55, 48880), (65, 41360), (80, 33605), (88, 30550), (94, 28600), (100, 26884), (104, 25850), (110, 24440), (130, 20680), (143, 18800), (176, 15275), (188, 14300), (200, 13442), (208, 12925), (220, 12220), (235, 11440), (260, 10340), (275, 9776), (286, 9400), (325, 8272), (376, 7150), (400, 6721), (440, 6110), (470, 5720), (517, 5200), (520, 5170), (550, 4888), (572, 4700), (611, 4400), (650, 4136), (715, 3760), (752, 3575), (880, 3055), (940, 2860), (1034, 2600), (1040, 2585), (1100, 2444), (1144, 2350), (1175, 2288), (1222, 2200), (1300, 2068), (1430, 1880)]