201020780168

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{257}}^1\times {\mathrm{578537}}^1$

素因数の和:578826

約数の個数: 48

約数和(自身を含む): 409726396980

約数和(自身を除く): 208705616812

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 257, 338, 514, 676, 1028, 1352, 2056, 3341, 6682, 13364, 26728, 43433, 86866, 173732, 347464, 578537, 1157074, 2314148, 4628296, 7520981, 15041962, 30083924, 60167848, 97772753, 148684009, 195545506, 297368018, 391091012, 594736036, 782182024, 1189472072, 1932892117, 3865784234, 7731568468, 15463136936, 25127597521, 50255195042, 100510390084, 201020780168]

約数ペア:

[(1, 201020780168), (2, 100510390084), (4, 50255195042), (8, 25127597521), (13, 15463136936), (26, 7731568468), (52, 3865784234), (104, 1932892117), (169, 1189472072), (257, 782182024), (338, 594736036), (514, 391091012), (676, 297368018), (1028, 195545506), (1352, 148684009), (2056, 97772753), (3341, 60167848), (6682, 30083924), (13364, 15041962), (26728, 7520981), (43433, 4628296), (86866, 2314148), (173732, 1157074), (347464, 578537)]