25859990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2969}}^1$

素因数の和:3056

約数の個数: 32

約数和(自身を含む): 50893920

約数和(自身を除く): 25033930

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2969, 4355, 5938, 8710, 14845, 29690, 38597, 77194, 192985, 198923, 385970, 397846, 994615, 1989230, 2585999, 5171998, 12929995, 25859990]

約数ペア:

[(1, 25859990), (2, 12929995), (5, 5171998), (10, 2585999), (13, 1989230), (26, 994615), (65, 397846), (67, 385970), (130, 198923), (134, 192985), (335, 77194), (670, 38597), (871, 29690), (1742, 14845), (2969, 8710), (4355, 5938)]