28759725

素因数分解:

$3^3\times 5^2\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 53389440

約数和(自身を除く): 24629715

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 137, 225, 311, 411, 675, 685, 933, 1233, 1555, 2055, 2799, 3425, 3699, 4665, 6165, 7775, 8397, 10275, 13995, 18495, 23325, 30825, 41985, 42607, 69975, 92475, 127821, 209925, 213035, 383463, 639105, 1065175, 1150389, 1917315, 3195525, 5751945, 9586575, 28759725]

約数ペア:

[(1, 28759725), (3, 9586575), (5, 5751945), (9, 3195525), (15, 1917315), (25, 1150389), (27, 1065175), (45, 639105), (75, 383463), (135, 213035), (137, 209925), (225, 127821), (311, 92475), (411, 69975), (675, 42607), (685, 41985), (933, 30825), (1233, 23325), (1555, 18495), (2055, 13995), (2799, 10275), (3425, 8397), (3699, 7775), (4665, 6165)]