64866440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{70507}}^1$

素因数の和:70541

約数の個数: 32

約数和(自身を含む): 152297280

約数和(自身を除く): 87430840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 70507, 141014, 282028, 352535, 564056, 705070, 1410140, 1621661, 2820280, 3243322, 6486644, 8108305, 12973288, 16216610, 32433220, 64866440]

約数ペア:

[(1, 64866440), (2, 32433220), (4, 16216610), (5, 12973288), (8, 8108305), (10, 6486644), (20, 3243322), (23, 2820280), (40, 1621661), (46, 1410140), (92, 705070), (115, 564056), (184, 352535), (230, 282028), (460, 141014), (920, 70507)]