81966225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1361}}^1$

素因数の和:1458

約数の個数: 48

約数和(自身を含む): 149972544

約数和(自身を除く): 68006319

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 73, 75, 165, 219, 275, 365, 803, 825, 1095, 1361, 1825, 2409, 4015, 4083, 5475, 6805, 12045, 14971, 20075, 20415, 34025, 44913, 60225, 74855, 99353, 102075, 224565, 298059, 374275, 496765, 1092883, 1122825, 1490295, 2483825, 3278649, 5464415, 7451475, 16393245, 27322075, 81966225]

約数ペア:

[(1, 81966225), (3, 27322075), (5, 16393245), (11, 7451475), (15, 5464415), (25, 3278649), (33, 2483825), (55, 1490295), (73, 1122825), (75, 1092883), (165, 496765), (219, 374275), (275, 298059), (365, 224565), (803, 102075), (825, 99353), (1095, 74855), (1361, 60225), (1825, 44913), (2409, 34025), (4015, 20415), (4083, 20075), (5475, 14971), (6805, 12045)]