2802800

素因数分解:

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

素因数の和:56

約数の個数: 180

約数和(自身を含む): 9202536

約数和(自身を除く): 6399736

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 25, 26, 28, 35, 40, 44, 49, 50, 52, 55, 56, 65, 70, 77, 80, 88, 91, 98, 100, 104, 110, 112, 130, 140, 143, 154, 175, 176, 182, 196, 200, 208, 220, 245, 260, 275, 280, 286, 308, 325, 350, 364, 385, 392, 400, 440, 455, 490, 520, 539, 550, 560, 572, 616, 637, 650, 700, 715, 728, 770, 784, 880, 910, 980, 1001, 1040, 1078, 1100, 1144, 1225, 1232, 1274, 1300, 1400, 1430, 1456, 1540, 1820, 1925, 1960, 2002, 2156, 2200, 2275, 2288, 2450, 2548, 2600, 2695, 2800, 2860, 3080, 3185, 3575, 3640, 3850, 3920, 4004, 4312, 4400, 4550, 4900, 5005, 5096, 5200, 5390, 5720, 6160, 6370, 7007, 7150, 7280, 7700, 8008, 8624, 9100, 9800, 10010, 10192, 10780, 11440, 12740, 13475, 14014, 14300, 15400, 15925, 16016, 18200, 19600, 20020, 21560, 25025, 25480, 26950, 28028, 28600, 30800, 31850, 35035, 36400, 40040, 43120, 50050, 50960, 53900, 56056, 57200, 63700, 70070, 80080, 100100, 107800, 112112, 127400, 140140, 175175, 200200, 215600, 254800, 280280, 350350, 400400, 560560, 700700, 1401400, 2802800]

約数ペア:

[(1, 2802800), (2, 1401400), (4, 700700), (5, 560560), (7, 400400), (8, 350350), (10, 280280), (11, 254800), (13, 215600), (14, 200200), (16, 175175), (20, 140140), (22, 127400), (25, 112112), (26, 107800), (28, 100100), (35, 80080), (40, 70070), (44, 63700), (49, 57200), (50, 56056), (52, 53900), (55, 50960), (56, 50050), (65, 43120), (70, 40040), (77, 36400), (80, 35035), (88, 31850), (91, 30800), (98, 28600), (100, 28028), (104, 26950), (110, 25480), (112, 25025), (130, 21560), (140, 20020), (143, 19600), (154, 18200), (175, 16016), (176, 15925), (182, 15400), (196, 14300), (200, 14014), (208, 13475), (220, 12740), (245, 11440), (260, 10780), (275, 10192), (280, 10010), (286, 9800), (308, 9100), (325, 8624), (350, 8008), (364, 7700), (385, 7280), (392, 7150), (400, 7007), (440, 6370), (455, 6160), (490, 5720), (520, 5390), (539, 5200), (550, 5096), (560, 5005), (572, 4900), (616, 4550), (637, 4400), (650, 4312), (700, 4004), (715, 3920), (728, 3850), (770, 3640), (784, 3575), (880, 3185), (910, 3080), (980, 2860), (1001, 2800), (1040, 2695), (1078, 2600), (1100, 2548), (1144, 2450), (1225, 2288), (1232, 2275), (1274, 2200), (1300, 2156), (1400, 2002), (1430, 1960), (1456, 1925), (1540, 1820)]