25160720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1861}}^1$

素因数の和:1900

約数の個数: 60

約数和(自身を含む): 63378756

約数和(自身を除く): 38218036

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 1861, 2704, 3380, 3722, 6760, 7444, 9305, 13520, 14888, 18610, 24193, 29776, 37220, 48386, 74440, 96772, 120965, 148880, 193544, 241930, 314509, 387088, 483860, 629018, 967720, 1258036, 1572545, 1935440, 2516072, 3145090, 5032144, 6290180, 12580360, 25160720]

約数ペア:

[(1, 25160720), (2, 12580360), (4, 6290180), (5, 5032144), (8, 3145090), (10, 2516072), (13, 1935440), (16, 1572545), (20, 1258036), (26, 967720), (40, 629018), (52, 483860), (65, 387088), (80, 314509), (104, 241930), (130, 193544), (169, 148880), (208, 120965), (260, 96772), (338, 74440), (520, 48386), (676, 37220), (845, 29776), (1040, 24193), (1352, 18610), (1690, 14888), (1861, 13520), (2704, 9305), (3380, 7444), (3722, 6760)]