2005102720

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{349}}^1$

素因数の和:606

約数の個数: 128

約数和(自身を含む): 4935168000

約数和(自身を除く): 2930065280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 191, 235, 320, 349, 376, 382, 470, 640, 698, 752, 764, 940, 955, 1396, 1504, 1528, 1745, 1880, 1910, 2792, 3008, 3056, 3490, 3760, 3820, 5584, 6016, 6112, 6980, 7520, 7640, 8977, 11168, 12224, 13960, 15040, 15280, 16403, 17954, 22336, 24448, 27920, 30080, 30560, 32806, 35908, 44672, 44885, 55840, 61120, 65612, 66659, 71816, 82015, 89770, 111680, 122240, 131224, 133318, 143632, 164030, 179540, 223360, 262448, 266636, 287264, 328060, 333295, 359080, 524896, 533272, 574528, 656120, 666590, 718160, 1049792, 1066544, 1149056, 1312240, 1333180, 1436320, 2099584, 2133088, 2624480, 2666360, 2872640, 3132973, 4266176, 5248960, 5332720, 5745280, 6265946, 8532352, 10497920, 10665440, 12531892, 15664865, 21330880, 25063784, 31329730, 42661760, 50127568, 62659460, 100255136, 125318920, 200510272, 250637840, 401020544, 501275680, 1002551360, 2005102720]

約数ペア:

[(1, 2005102720), (2, 1002551360), (4, 501275680), (5, 401020544), (8, 250637840), (10, 200510272), (16, 125318920), (20, 100255136), (32, 62659460), (40, 50127568), (47, 42661760), (64, 31329730), (80, 25063784), (94, 21330880), (128, 15664865), (160, 12531892), (188, 10665440), (191, 10497920), (235, 8532352), (320, 6265946), (349, 5745280), (376, 5332720), (382, 5248960), (470, 4266176), (640, 3132973), (698, 2872640), (752, 2666360), (764, 2624480), (940, 2133088), (955, 2099584), (1396, 1436320), (1504, 1333180), (1528, 1312240), (1745, 1149056), (1880, 1066544), (1910, 1049792), (2792, 718160), (3008, 666590), (3056, 656120), (3490, 574528), (3760, 533272), (3820, 524896), (5584, 359080), (6016, 333295), (6112, 328060), (6980, 287264), (7520, 266636), (7640, 262448), (8977, 223360), (11168, 179540), (12224, 164030), (13960, 143632), (15040, 133318), (15280, 131224), (16403, 122240), (17954, 111680), (22336, 89770), (24448, 82015), (27920, 71816), (30080, 66659), (30560, 65612), (32806, 61120), (35908, 55840), (44672, 44885)]