81549960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1747}}^1$

素因数の和:2150

約数の個数: 64

約数和(自身を含む): 245419200

約数和(自身を除く): 163869240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 778, 1167, 1556, 1747, 1945, 2334, 3112, 3494, 3890, 4668, 5241, 5835, 6988, 7780, 8735, 9336, 10482, 11670, 13976, 15560, 17470, 20964, 23340, 26205, 34940, 41928, 46680, 52410, 69880, 104820, 209640, 679583, 1359166, 2038749, 2718332, 3397915, 4077498, 5436664, 6795830, 8154996, 10193745, 13591660, 16309992, 20387490, 27183320, 40774980, 81549960]

約数ペア:

[(1, 81549960), (2, 40774980), (3, 27183320), (4, 20387490), (5, 16309992), (6, 13591660), (8, 10193745), (10, 8154996), (12, 6795830), (15, 5436664), (20, 4077498), (24, 3397915), (30, 2718332), (40, 2038749), (60, 1359166), (120, 679583), (389, 209640), (778, 104820), (1167, 69880), (1556, 52410), (1747, 46680), (1945, 41928), (2334, 34940), (3112, 26205), (3494, 23340), (3890, 20964), (4668, 17470), (5241, 15560), (5835, 13976), (6988, 11670), (7780, 10482), (8735, 9336)]