12788480

素因数分解:

$2^8\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 72

約数和(自身を含む): 31248672

約数和(自身を除く): 18460192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 103, 128, 160, 194, 206, 256, 320, 388, 412, 485, 515, 640, 776, 824, 970, 1030, 1280, 1552, 1648, 1940, 2060, 3104, 3296, 3880, 4120, 6208, 6592, 7760, 8240, 9991, 12416, 13184, 15520, 16480, 19982, 24832, 26368, 31040, 32960, 39964, 49955, 62080, 65920, 79928, 99910, 124160, 131840, 159856, 199820, 319712, 399640, 639424, 799280, 1278848, 1598560, 2557696, 3197120, 6394240, 12788480]

約数ペア:

[(1, 12788480), (2, 6394240), (4, 3197120), (5, 2557696), (8, 1598560), (10, 1278848), (16, 799280), (20, 639424), (32, 399640), (40, 319712), (64, 199820), (80, 159856), (97, 131840), (103, 124160), (128, 99910), (160, 79928), (194, 65920), (206, 62080), (256, 49955), (320, 39964), (388, 32960), (412, 31040), (485, 26368), (515, 24832), (640, 19982), (776, 16480), (824, 15520), (970, 13184), (1030, 12416), (1280, 9991), (1552, 8240), (1648, 7760), (1940, 6592), (2060, 6208), (3104, 4120), (3296, 3880)]