61237520

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1559}}^1$

素因数の和:2063

約数の個数: 40

約数和(自身を含む): 142758720

約数和(自身を除く): 81521200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1559, 1964, 2455, 3118, 3928, 4910, 6236, 7795, 7856, 9820, 12472, 15590, 19640, 24944, 31180, 39280, 62360, 124720, 765469, 1530938, 3061876, 3827345, 6123752, 7654690, 12247504, 15309380, 30618760, 61237520]

約数ペア:

[(1, 61237520), (2, 30618760), (4, 15309380), (5, 12247504), (8, 7654690), (10, 6123752), (16, 3827345), (20, 3061876), (40, 1530938), (80, 765469), (491, 124720), (982, 62360), (1559, 39280), (1964, 31180), (2455, 24944), (3118, 19640), (3928, 15590), (4910, 12472), (6236, 9820), (7795, 7856)]