28756785

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:198

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 23497935

約数列:

[1, 3, 5, 15, 19, 23, 41, 57, 69, 95, 107, 115, 123, 205, 285, 321, 345, 437, 535, 615, 779, 943, 1311, 1605, 2033, 2185, 2337, 2461, 2829, 3895, 4387, 4715, 6099, 6555, 7383, 10165, 11685, 12305, 13161, 14145, 17917, 21935, 30495, 36915, 46759, 53751, 65805, 83353, 89585, 100901, 140277, 233795, 250059, 268755, 302703, 416765, 504505, 701385, 1250295, 1513515, 1917119, 5751357, 9585595, 28756785]

約数ペア:

[(1, 28756785), (3, 9585595), (5, 5751357), (15, 1917119), (19, 1513515), (23, 1250295), (41, 701385), (57, 504505), (69, 416765), (95, 302703), (107, 268755), (115, 250059), (123, 233795), (205, 140277), (285, 100901), (321, 89585), (345, 83353), (437, 65805), (535, 53751), (615, 46759), (779, 36915), (943, 30495), (1311, 21935), (1605, 17917), (2033, 14145), (2185, 13161), (2337, 12305), (2461, 11685), (2829, 10165), (3895, 7383), (4387, 6555), (4715, 6099)]