256947156784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{17909}}^1\times {\mathrm{21871}}^1$

素因数の和:39829

約数の個数: 40

約数和(自身を含む): 510029231040

約数和(自身を除く): 253082074256

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 17909, 21871, 35818, 43742, 71636, 87484, 143272, 174968, 286544, 349936, 734269, 896711, 1468538, 1793422, 2937076, 3586844, 5874152, 7173688, 11748304, 14347376, 391687739, 783375478, 1566750956, 3133501912, 6267003824, 16059197299, 32118394598, 64236789196, 128473578392, 256947156784]

約数ペア:

[(1, 256947156784), (2, 128473578392), (4, 64236789196), (8, 32118394598), (16, 16059197299), (41, 6267003824), (82, 3133501912), (164, 1566750956), (328, 783375478), (656, 391687739), (17909, 14347376), (21871, 11748304), (35818, 7173688), (43742, 5874152), (71636, 3586844), (87484, 2937076), (143272, 1793422), (174968, 1468538), (286544, 896711), (349936, 734269)]