218738728

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:387

約数の個数: 96

約数和(自身を含む): 486984960

約数和(自身を除く): 268246232

約数列:

[1, 2, 4, 8, 13, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 169, 221, 248, 307, 338, 403, 442, 527, 614, 676, 806, 884, 1054, 1228, 1352, 1612, 1768, 2108, 2456, 2873, 3224, 3991, 4216, 5219, 5239, 5746, 6851, 7982, 9517, 10438, 10478, 11492, 13702, 15964, 19034, 20876, 20956, 22984, 27404, 31928, 38068, 41752, 41912, 51883, 54808, 67847, 76136, 89063, 103766, 123721, 135694, 161789, 178126, 207532, 247442, 271388, 323578, 356252, 415064, 494884, 542776, 647156, 712504, 882011, 989768, 1294312, 1608373, 1764022, 2103257, 3216746, 3528044, 4206514, 6433492, 7056088, 8413028, 12866984, 16826056, 27342341, 54684682, 109369364, 218738728]

約数ペア:

[(1, 218738728), (2, 109369364), (4, 54684682), (8, 27342341), (13, 16826056), (17, 12866984), (26, 8413028), (31, 7056088), (34, 6433492), (52, 4206514), (62, 3528044), (68, 3216746), (104, 2103257), (124, 1764022), (136, 1608373), (169, 1294312), (221, 989768), (248, 882011), (307, 712504), (338, 647156), (403, 542776), (442, 494884), (527, 415064), (614, 356252), (676, 323578), (806, 271388), (884, 247442), (1054, 207532), (1228, 178126), (1352, 161789), (1612, 135694), (1768, 123721), (2108, 103766), (2456, 89063), (2873, 76136), (3224, 67847), (3991, 54808), (4216, 51883), (5219, 41912), (5239, 41752), (5746, 38068), (6851, 31928), (7982, 27404), (9517, 22984), (10438, 20956), (10478, 20876), (11492, 19034), (13702, 15964)]