201715856

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{663539}}^1$

素因数の和:663566

約数の個数: 20

約数和(自身を含む): 411394800

約数和(自身を除く): 209678944

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 663539, 1327078, 2654156, 5308312, 10616624, 12607241, 25214482, 50428964, 100857928, 201715856]

約数ペア:

[(1, 201715856), (2, 100857928), (4, 50428964), (8, 25214482), (16, 12607241), (19, 10616624), (38, 5308312), (76, 2654156), (152, 1327078), (304, 663539)]