278326928

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:556

約数の個数: 80

約数和(自身を含む): 613294080

約数和(自身を除く): 334967152

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 139, 176, 248, 278, 341, 367, 496, 556, 682, 734, 1112, 1364, 1468, 1529, 2224, 2728, 2936, 3058, 4037, 4309, 5456, 5872, 6116, 8074, 8618, 11377, 12232, 16148, 17236, 22754, 24464, 32296, 34472, 45508, 47399, 51013, 64592, 68944, 91016, 94798, 102026, 125147, 182032, 189596, 204052, 250294, 379192, 408104, 500588, 561143, 758384, 816208, 1001176, 1122286, 1581403, 2002352, 2244572, 3162806, 4489144, 6325612, 8978288, 12651224, 17395433, 25302448, 34790866, 69581732, 139163464, 278326928]

約数ペア:

[(1, 278326928), (2, 139163464), (4, 69581732), (8, 34790866), (11, 25302448), (16, 17395433), (22, 12651224), (31, 8978288), (44, 6325612), (62, 4489144), (88, 3162806), (124, 2244572), (139, 2002352), (176, 1581403), (248, 1122286), (278, 1001176), (341, 816208), (367, 758384), (496, 561143), (556, 500588), (682, 408104), (734, 379192), (1112, 250294), (1364, 204052), (1468, 189596), (1529, 182032), (2224, 125147), (2728, 102026), (2936, 94798), (3058, 91016), (4037, 68944), (4309, 64592), (5456, 51013), (5872, 47399), (6116, 45508), (8074, 34472), (8618, 32296), (11377, 24464), (12232, 22754), (16148, 17236)]