1520441720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{81047}}^1$

素因数の和:81132

約数の個数: 64

約数和(自身を含む): 3968110080

約数和(自身を除く): 2447668360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 3752, 4690, 9380, 18760, 81047, 162094, 324188, 405235, 567329, 648376, 810470, 1134658, 1620940, 2269316, 2836645, 3241880, 4538632, 5430149, 5673290, 10860298, 11346580, 21720596, 22693160, 27150745, 38011043, 43441192, 54301490, 76022086, 108602980, 152044172, 190055215, 217205960, 304088344, 380110430, 760220860, 1520441720]

約数ペア:

[(1, 1520441720), (2, 760220860), (4, 380110430), (5, 304088344), (7, 217205960), (8, 190055215), (10, 152044172), (14, 108602980), (20, 76022086), (28, 54301490), (35, 43441192), (40, 38011043), (56, 27150745), (67, 22693160), (70, 21720596), (134, 11346580), (140, 10860298), (268, 5673290), (280, 5430149), (335, 4538632), (469, 3241880), (536, 2836645), (670, 2269316), (938, 1620940), (1340, 1134658), (1876, 810470), (2345, 648376), (2680, 567329), (3752, 405235), (4690, 324188), (9380, 162094), (18760, 81047)]