28635525

素因数分解:

$3^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:280

約数の個数: 60

約数和(自身を含む): 54014400

約数和(自身を除く): 25378875

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 79, 81, 135, 179, 225, 237, 395, 405, 537, 675, 711, 895, 1185, 1611, 1975, 2025, 2133, 2685, 3555, 4475, 4833, 5925, 6399, 8055, 10665, 13425, 14141, 14499, 17775, 24165, 31995, 40275, 42423, 53325, 70705, 72495, 120825, 127269, 159975, 212115, 353525, 362475, 381807, 636345, 1060575, 1145421, 1909035, 3181725, 5727105, 9545175, 28635525]

約数ペア:

[(1, 28635525), (3, 9545175), (5, 5727105), (9, 3181725), (15, 1909035), (25, 1145421), (27, 1060575), (45, 636345), (75, 381807), (79, 362475), (81, 353525), (135, 212115), (179, 159975), (225, 127269), (237, 120825), (395, 72495), (405, 70705), (537, 53325), (675, 42423), (711, 40275), (895, 31995), (1185, 24165), (1611, 17775), (1975, 14499), (2025, 14141), (2133, 13425), (2685, 10665), (3555, 8055), (4475, 6399), (4833, 5925)]