66185480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{40357}}^1$

素因数の和:40409

約数の個数: 32

約数和(自身を含む): 152553240

約数和(自身を除く): 86367760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 40357, 80714, 161428, 201785, 322856, 403570, 807140, 1614280, 1654637, 3309274, 6618548, 8273185, 13237096, 16546370, 33092740, 66185480]

約数ペア:

[(1, 66185480), (2, 33092740), (4, 16546370), (5, 13237096), (8, 8273185), (10, 6618548), (20, 3309274), (40, 1654637), (41, 1614280), (82, 807140), (164, 403570), (205, 322856), (328, 201785), (410, 161428), (820, 80714), (1640, 40357)]