25441280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{4969}}^1$

素因数の和:4994

約数の個数: 44

約数和(自身を含む): 61041540

約数和(自身を除く): 35600260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 4969, 5120, 9938, 19876, 24845, 39752, 49690, 79504, 99380, 159008, 198760, 318016, 397520, 636032, 795040, 1272064, 1590080, 2544128, 3180160, 5088256, 6360320, 12720640, 25441280]

約数ペア:

[(1, 25441280), (2, 12720640), (4, 6360320), (5, 5088256), (8, 3180160), (10, 2544128), (16, 1590080), (20, 1272064), (32, 795040), (40, 636032), (64, 397520), (80, 318016), (128, 198760), (160, 159008), (256, 99380), (320, 79504), (512, 49690), (640, 39752), (1024, 24845), (1280, 19876), (2560, 9938), (4969, 5120)]