87431640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1873}}^1$

素因数の和:2276

約数の個数: 64

約数和(自身を含む): 263109600

約数和(自身を除く): 175677960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 778, 1167, 1556, 1873, 1945, 2334, 3112, 3746, 3890, 4668, 5619, 5835, 7492, 7780, 9336, 9365, 11238, 11670, 14984, 15560, 18730, 22476, 23340, 28095, 37460, 44952, 46680, 56190, 74920, 112380, 224760, 728597, 1457194, 2185791, 2914388, 3642985, 4371582, 5828776, 7285970, 8743164, 10928955, 14571940, 17486328, 21857910, 29143880, 43715820, 87431640]

約数ペア:

[(1, 87431640), (2, 43715820), (3, 29143880), (4, 21857910), (5, 17486328), (6, 14571940), (8, 10928955), (10, 8743164), (12, 7285970), (15, 5828776), (20, 4371582), (24, 3642985), (30, 2914388), (40, 2185791), (60, 1457194), (120, 728597), (389, 224760), (778, 112380), (1167, 74920), (1556, 56190), (1873, 46680), (1945, 44952), (2334, 37460), (3112, 28095), (3746, 23340), (3890, 22476), (4668, 18730), (5619, 15560), (5835, 14984), (7492, 11670), (7780, 11238), (9336, 9365)]