28894920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{619}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 87048000

約数和(自身を除く): 58153080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 389, 619, 778, 1167, 1238, 1556, 1857, 1945, 2334, 2476, 3095, 3112, 3714, 3890, 4668, 4952, 5835, 6190, 7428, 7780, 9285, 9336, 11670, 12380, 14856, 15560, 18570, 23340, 24760, 37140, 46680, 74280, 240791, 481582, 722373, 963164, 1203955, 1444746, 1926328, 2407910, 2889492, 3611865, 4815820, 5778984, 7223730, 9631640, 14447460, 28894920]

約数ペア:

[(1, 28894920), (2, 14447460), (3, 9631640), (4, 7223730), (5, 5778984), (6, 4815820), (8, 3611865), (10, 2889492), (12, 2407910), (15, 1926328), (20, 1444746), (24, 1203955), (30, 963164), (40, 722373), (60, 481582), (120, 240791), (389, 74280), (619, 46680), (778, 37140), (1167, 24760), (1238, 23340), (1556, 18570), (1857, 15560), (1945, 14856), (2334, 12380), (2476, 11670), (3095, 9336), (3112, 9285), (3714, 7780), (3890, 7428), (4668, 6190), (4952, 5835)]