28153275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 50139648

約数和(自身を除く): 21986373

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 213, 255, 311, 355, 425, 933, 1065, 1207, 1275, 1555, 1775, 3621, 4665, 5287, 5325, 6035, 7775, 15861, 18105, 22081, 23325, 26435, 30175, 66243, 79305, 90525, 110405, 132175, 331215, 375377, 396525, 552025, 1126131, 1656075, 1876885, 5630655, 9384425, 28153275]

約数ペア:

[(1, 28153275), (3, 9384425), (5, 5630655), (15, 1876885), (17, 1656075), (25, 1126131), (51, 552025), (71, 396525), (75, 375377), (85, 331215), (213, 132175), (255, 110405), (311, 90525), (355, 79305), (425, 66243), (933, 30175), (1065, 26435), (1207, 23325), (1275, 22081), (1555, 18105), (1775, 15861), (3621, 7775), (4665, 6035), (5287, 5325)]