666951680

素因数分解:

$2^{13}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:907

約数の個数: 112

約数和(自身を含む): 1686793680

約数和(自身を除く): 1019842000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 857, 1024, 1216, 1280, 1520, 1714, 2048, 2432, 2560, 3040, 3428, 4096, 4285, 4864, 5120, 6080, 6856, 8192, 8570, 9728, 10240, 12160, 13712, 16283, 17140, 19456, 20480, 24320, 27424, 32566, 34280, 38912, 40960, 48640, 54848, 65132, 68560, 77824, 81415, 97280, 109696, 130264, 137120, 155648, 162830, 194560, 219392, 260528, 274240, 325660, 389120, 438784, 521056, 548480, 651320, 778240, 877568, 1042112, 1096960, 1302640, 1755136, 2084224, 2193920, 2605280, 3510272, 4168448, 4387840, 5210560, 7020544, 8336896, 8775680, 10421120, 16673792, 17551360, 20842240, 33347584, 35102720, 41684480, 66695168, 83368960, 133390336, 166737920, 333475840, 666951680]

約数ペア:

[(1, 666951680), (2, 333475840), (4, 166737920), (5, 133390336), (8, 83368960), (10, 66695168), (16, 41684480), (19, 35102720), (20, 33347584), (32, 20842240), (38, 17551360), (40, 16673792), (64, 10421120), (76, 8775680), (80, 8336896), (95, 7020544), (128, 5210560), (152, 4387840), (160, 4168448), (190, 3510272), (256, 2605280), (304, 2193920), (320, 2084224), (380, 1755136), (512, 1302640), (608, 1096960), (640, 1042112), (760, 877568), (857, 778240), (1024, 651320), (1216, 548480), (1280, 521056), (1520, 438784), (1714, 389120), (2048, 325660), (2432, 274240), (2560, 260528), (3040, 219392), (3428, 194560), (4096, 162830), (4285, 155648), (4864, 137120), (5120, 130264), (6080, 109696), (6856, 97280), (8192, 81415), (8570, 77824), (9728, 68560), (10240, 65132), (12160, 54848), (13712, 48640), (16283, 40960), (17140, 38912), (19456, 34280), (20480, 32566), (24320, 27424)]