128753716

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20807}}^1$

素因数の和:20848

約数の個数: 48

約数和(自身を含む): 293642496

約数和(自身を除く): 164888780

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 6188, 20807, 41614, 83228, 145649, 270491, 291298, 353719, 540982, 582596, 707438, 1081964, 1414876, 1893437, 2476033, 3786874, 4598347, 4952066, 7573748, 9196694, 9904132, 18393388, 32188429, 64376858, 128753716]

約数ペア:

[(1, 128753716), (2, 64376858), (4, 32188429), (7, 18393388), (13, 9904132), (14, 9196694), (17, 7573748), (26, 4952066), (28, 4598347), (34, 3786874), (52, 2476033), (68, 1893437), (91, 1414876), (119, 1081964), (182, 707438), (221, 582596), (238, 540982), (364, 353719), (442, 291298), (476, 270491), (884, 145649), (1547, 83228), (3094, 41614), (6188, 20807)]