81250728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{260419}}^1$

素因数の和:260441

約数の個数: 32

約数和(自身を含む): 218752800

約数和(自身を除く): 137502072

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 260419, 520838, 781257, 1041676, 1562514, 2083352, 3125028, 3385447, 6250056, 6770894, 10156341, 13541788, 20312682, 27083576, 40625364, 81250728]

約数ペア:

[(1, 81250728), (2, 40625364), (3, 27083576), (4, 20312682), (6, 13541788), (8, 10156341), (12, 6770894), (13, 6250056), (24, 3385447), (26, 3125028), (39, 2083352), (52, 1562514), (78, 1041676), (104, 781257), (156, 520838), (312, 260419)]