81118260

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{16691}}^1$

素因数の和:16715

約数の個数: 72

約数和(自身を含む): 255187296

約数和(自身を除く): 174069036

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 16691, 33382, 50073, 66764, 83455, 100146, 150219, 166910, 200292, 250365, 300438, 333820, 450657, 500730, 600876, 751095, 901314, 1001460, 1351971, 1502190, 1802628, 2253285, 2703942, 3004380, 4055913, 4506570, 5407884, 6759855, 8111826, 9013140, 13519710, 16223652, 20279565, 27039420, 40559130, 81118260]

約数ペア:

[(1, 81118260), (2, 40559130), (3, 27039420), (4, 20279565), (5, 16223652), (6, 13519710), (9, 9013140), (10, 8111826), (12, 6759855), (15, 5407884), (18, 4506570), (20, 4055913), (27, 3004380), (30, 2703942), (36, 2253285), (45, 1802628), (54, 1502190), (60, 1351971), (81, 1001460), (90, 901314), (108, 751095), (135, 600876), (162, 500730), (180, 450657), (243, 333820), (270, 300438), (324, 250365), (405, 200292), (486, 166910), (540, 150219), (810, 100146), (972, 83455), (1215, 66764), (1620, 50073), (2430, 33382), (4860, 16691)]