25980160

素因数分解:

$2^8\times 5^1\times {\mathrm{20297}}^1$

素因数の和:20318

約数の個数: 36

約数和(自身を含む): 62233668

約数和(自身を除く): 36253508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 20297, 40594, 81188, 101485, 162376, 202970, 324752, 405940, 649504, 811880, 1299008, 1623760, 2598016, 3247520, 5196032, 6495040, 12990080, 25980160]

約数ペア:

[(1, 25980160), (2, 12990080), (4, 6495040), (5, 5196032), (8, 3247520), (10, 2598016), (16, 1623760), (20, 1299008), (32, 811880), (40, 649504), (64, 405940), (80, 324752), (128, 202970), (160, 162376), (256, 101485), (320, 81188), (640, 40594), (1280, 20297)]