3856905

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 7600320

約数和(自身を除く): 3743415

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 247, 285, 347, 585, 741, 855, 1041, 1235, 1735, 2223, 3123, 3705, 4511, 5205, 6593, 11115, 13533, 15615, 19779, 22555, 32965, 40599, 59337, 67665, 85709, 98895, 202995, 257127, 296685, 428545, 771381, 1285635, 3856905]

約数ペア:

[(1, 3856905), (3, 1285635), (5, 771381), (9, 428545), (13, 296685), (15, 257127), (19, 202995), (39, 98895), (45, 85709), (57, 67665), (65, 59337), (95, 40599), (117, 32965), (171, 22555), (195, 19779), (247, 15615), (285, 13533), (347, 11115), (585, 6593), (741, 5205), (855, 4511), (1041, 3705), (1235, 3123), (1735, 2223)]