26690560

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1$

素因数の和:439

約数の個数: 88

約数和(自身を含む): 69123096

約数和(自身を除く): 42432536

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 401, 416, 512, 520, 640, 802, 832, 1024, 1040, 1280, 1604, 1664, 2005, 2080, 2560, 3208, 3328, 4010, 4160, 5120, 5213, 6416, 6656, 8020, 8320, 10426, 12832, 13312, 16040, 16640, 20852, 25664, 26065, 32080, 33280, 41704, 51328, 52130, 64160, 66560, 83408, 102656, 104260, 128320, 166816, 205312, 208520, 256640, 333632, 410624, 417040, 513280, 667264, 834080, 1026560, 1334528, 1668160, 2053120, 2669056, 3336320, 5338112, 6672640, 13345280, 26690560]

約数ペア:

[(1, 26690560), (2, 13345280), (4, 6672640), (5, 5338112), (8, 3336320), (10, 2669056), (13, 2053120), (16, 1668160), (20, 1334528), (26, 1026560), (32, 834080), (40, 667264), (52, 513280), (64, 417040), (65, 410624), (80, 333632), (104, 256640), (128, 208520), (130, 205312), (160, 166816), (208, 128320), (256, 104260), (260, 102656), (320, 83408), (401, 66560), (416, 64160), (512, 52130), (520, 51328), (640, 41704), (802, 33280), (832, 32080), (1024, 26065), (1040, 25664), (1280, 20852), (1604, 16640), (1664, 16040), (2005, 13312), (2080, 12832), (2560, 10426), (3208, 8320), (3328, 8020), (4010, 6656), (4160, 6416), (5120, 5213)]