38911905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 72109440

約数和(自身を除く): 33197535

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 71, 95, 171, 213, 285, 355, 639, 641, 855, 1065, 1349, 1923, 3195, 3205, 4047, 5769, 6745, 9615, 12141, 12179, 20235, 28845, 36537, 45511, 60705, 60895, 109611, 136533, 182685, 227555, 409599, 548055, 682665, 864709, 2047995, 2594127, 4323545, 7782381, 12970635, 38911905]

約数ペア:

[(1, 38911905), (3, 12970635), (5, 7782381), (9, 4323545), (15, 2594127), (19, 2047995), (45, 864709), (57, 682665), (71, 548055), (95, 409599), (171, 227555), (213, 182685), (285, 136533), (355, 109611), (639, 60895), (641, 60705), (855, 45511), (1065, 36537), (1349, 28845), (1923, 20235), (3195, 12179), (3205, 12141), (4047, 9615), (5769, 6745)]