26726440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 65520000

約数和(自身を除く): 38793560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 103, 104, 130, 206, 260, 412, 499, 515, 520, 824, 998, 1030, 1339, 1996, 2060, 2495, 2678, 3992, 4120, 4990, 5356, 6487, 6695, 9980, 10712, 12974, 13390, 19960, 25948, 26780, 32435, 51397, 51896, 53560, 64870, 102794, 129740, 205588, 256985, 259480, 411176, 513970, 668161, 1027940, 1336322, 2055880, 2672644, 3340805, 5345288, 6681610, 13363220, 26726440]

約数ペア:

[(1, 26726440), (2, 13363220), (4, 6681610), (5, 5345288), (8, 3340805), (10, 2672644), (13, 2055880), (20, 1336322), (26, 1027940), (40, 668161), (52, 513970), (65, 411176), (103, 259480), (104, 256985), (130, 205588), (206, 129740), (260, 102794), (412, 64870), (499, 53560), (515, 51896), (520, 51397), (824, 32435), (998, 26780), (1030, 25948), (1339, 19960), (1996, 13390), (2060, 12974), (2495, 10712), (2678, 9980), (3992, 6695), (4120, 6487), (4990, 5356)]