268736

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 56

約数和(自身を含む): 640080

約数和(自身を除く): 371344

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 64, 68, 76, 104, 136, 152, 208, 221, 247, 272, 304, 323, 416, 442, 494, 544, 608, 646, 832, 884, 988, 1088, 1216, 1292, 1768, 1976, 2584, 3536, 3952, 4199, 5168, 7072, 7904, 8398, 10336, 14144, 15808, 16796, 20672, 33592, 67184, 134368, 268736]

約数ペア:

[(1, 268736), (2, 134368), (4, 67184), (8, 33592), (13, 20672), (16, 16796), (17, 15808), (19, 14144), (26, 10336), (32, 8398), (34, 7904), (38, 7072), (52, 5168), (64, 4199), (68, 3952), (76, 3536), (104, 2584), (136, 1976), (152, 1768), (208, 1292), (221, 1216), (247, 1088), (272, 988), (304, 884), (323, 832), (416, 646), (442, 608), (494, 544)]