65940880

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8161}}^1$

素因数の和:8275

約数の個数: 40

約数和(自身を含む): 154849464

約数和(自身を除く): 88908584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 8161, 16322, 32644, 40805, 65288, 81610, 130576, 163220, 326440, 652880, 824261, 1648522, 3297044, 4121305, 6594088, 8242610, 13188176, 16485220, 32970440, 65940880]

約数ペア:

[(1, 65940880), (2, 32970440), (4, 16485220), (5, 13188176), (8, 8242610), (10, 6594088), (16, 4121305), (20, 3297044), (40, 1648522), (80, 824261), (101, 652880), (202, 326440), (404, 163220), (505, 130576), (808, 81610), (1010, 65288), (1616, 40805), (2020, 32644), (4040, 16322), (8080, 8161)]