26640640

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1601}}^1$

素因数の和:1635

約数の個数: 72

約数和(自身を含む): 68764248

約数和(自身を除く): 42123608

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, 416, 520, 640, 832, 1040, 1280, 1601, 1664, 2080, 3202, 3328, 4160, 6404, 8005, 8320, 12808, 16010, 16640, 20813, 25616, 32020, 41626, 51232, 64040, 83252, 102464, 104065, 128080, 166504, 204928, 208130, 256160, 333008, 409856, 416260, 512320, 666016, 832520, 1024640, 1332032, 1665040, 2049280, 2664064, 3330080, 5328128, 6660160, 13320320, 26640640]

約数ペア:

[(1, 26640640), (2, 13320320), (4, 6660160), (5, 5328128), (8, 3330080), (10, 2664064), (13, 2049280), (16, 1665040), (20, 1332032), (26, 1024640), (32, 832520), (40, 666016), (52, 512320), (64, 416260), (65, 409856), (80, 333008), (104, 256160), (128, 208130), (130, 204928), (160, 166504), (208, 128080), (256, 104065), (260, 102464), (320, 83252), (416, 64040), (520, 51232), (640, 41626), (832, 32020), (1040, 25616), (1280, 20813), (1601, 16640), (1664, 16010), (2080, 12808), (3202, 8320), (3328, 8005), (4160, 6404)]