208784312

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{647}}^1$

素因数の和:876

約数の個数: 64

約数和(自身を含む): 452563200

約数和(自身を除く): 243778888

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 193, 209, 386, 418, 647, 772, 836, 1294, 1544, 1672, 2123, 2588, 3667, 4246, 5176, 7117, 7334, 8492, 12293, 14234, 14668, 16984, 24586, 28468, 29336, 40337, 49172, 56936, 80674, 98344, 124871, 135223, 161348, 249742, 270446, 322696, 499484, 540892, 998968, 1081784, 1373581, 2372549, 2747162, 4745098, 5494324, 9490196, 10988648, 18980392, 26098039, 52196078, 104392156, 208784312]

約数ペア:

[(1, 208784312), (2, 104392156), (4, 52196078), (8, 26098039), (11, 18980392), (19, 10988648), (22, 9490196), (38, 5494324), (44, 4745098), (76, 2747162), (88, 2372549), (152, 1373581), (193, 1081784), (209, 998968), (386, 540892), (418, 499484), (647, 322696), (772, 270446), (836, 249742), (1294, 161348), (1544, 135223), (1672, 124871), (2123, 98344), (2588, 80674), (3667, 56936), (4246, 49172), (5176, 40337), (7117, 29336), (7334, 28468), (8492, 24586), (12293, 16984), (14234, 14668)]