71647660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{1667}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 172617984

約数和(自身を除く): 100970324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 614, 1228, 1535, 1667, 2149, 3070, 3334, 4298, 6140, 6668, 8335, 8596, 10745, 11669, 16670, 21490, 23338, 33340, 42980, 46676, 58345, 116690, 233380, 511769, 1023538, 2047076, 2558845, 3582383, 5117690, 7164766, 10235380, 14329532, 17911915, 35823830, 71647660]

約数ペア:

[(1, 71647660), (2, 35823830), (4, 17911915), (5, 14329532), (7, 10235380), (10, 7164766), (14, 5117690), (20, 3582383), (28, 2558845), (35, 2047076), (70, 1023538), (140, 511769), (307, 233380), (614, 116690), (1228, 58345), (1535, 46676), (1667, 42980), (2149, 33340), (3070, 23338), (3334, 21490), (4298, 16670), (6140, 11669), (6668, 10745), (8335, 8596)]