1540379680

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{196477}}^1$

素因数の和:196506

約数の個数: 72

約数和(自身を含む): 4233314988

約数和(自身を除く): 2692935308

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 196477, 392954, 785908, 982385, 1375339, 1571816, 1964770, 2750678, 3143632, 3929540, 5501356, 6287264, 6876695, 7859080, 9627373, 11002712, 13753390, 15718160, 19254746, 22005424, 27506780, 31436320, 38509492, 44010848, 48136865, 55013560, 77018984, 96273730, 110027120, 154037968, 192547460, 220054240, 308075936, 385094920, 770189840, 1540379680]

約数ペア:

[(1, 1540379680), (2, 770189840), (4, 385094920), (5, 308075936), (7, 220054240), (8, 192547460), (10, 154037968), (14, 110027120), (16, 96273730), (20, 77018984), (28, 55013560), (32, 48136865), (35, 44010848), (40, 38509492), (49, 31436320), (56, 27506780), (70, 22005424), (80, 19254746), (98, 15718160), (112, 13753390), (140, 11002712), (160, 9627373), (196, 7859080), (224, 6876695), (245, 6287264), (280, 5501356), (392, 3929540), (490, 3143632), (560, 2750678), (784, 1964770), (980, 1571816), (1120, 1375339), (1568, 982385), (1960, 785908), (3920, 392954), (7840, 196477)]