128679512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{239}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 270950400

約数和(自身を除く): 142270888

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 167, 239, 248, 334, 403, 478, 668, 806, 956, 1336, 1612, 1912, 2171, 3107, 3224, 4342, 5177, 6214, 7409, 8684, 10354, 12428, 14818, 17368, 20708, 24856, 29636, 39913, 41416, 59272, 67301, 79826, 96317, 134602, 159652, 192634, 269204, 319304, 385268, 518869, 538408, 770536, 1037738, 1237303, 2075476, 2474606, 4150952, 4949212, 9898424, 16084939, 32169878, 64339756, 128679512]

約数ペア:

[(1, 128679512), (2, 64339756), (4, 32169878), (8, 16084939), (13, 9898424), (26, 4949212), (31, 4150952), (52, 2474606), (62, 2075476), (104, 1237303), (124, 1037738), (167, 770536), (239, 538408), (248, 518869), (334, 385268), (403, 319304), (478, 269204), (668, 192634), (806, 159652), (956, 134602), (1336, 96317), (1612, 79826), (1912, 67301), (2171, 59272), (3107, 41416), (3224, 39913), (4342, 29636), (5177, 24856), (6214, 20708), (7409, 17368), (8684, 14818), (10354, 12428)]