25471940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^2$

素因数の和:648

約数の個数: 36

約数和(自身を含む): 57790404

約数和(自身を除く): 32318464

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 313, 626, 1252, 1565, 3130, 4069, 6260, 8138, 16276, 20345, 40690, 81380, 97969, 195938, 391876, 489845, 979690, 1273597, 1959380, 2547194, 5094388, 6367985, 12735970, 25471940]

約数ペア:

[(1, 25471940), (2, 12735970), (4, 6367985), (5, 5094388), (10, 2547194), (13, 1959380), (20, 1273597), (26, 979690), (52, 489845), (65, 391876), (130, 195938), (260, 97969), (313, 81380), (626, 40690), (1252, 20345), (1565, 16276), (3130, 8138), (4069, 6260)]