2017779440

素因数分解:

$2^4\times 5^1\times {\mathrm{4639}}^1\times {\mathrm{5437}}^1$

素因数の和:10089

約数の個数: 40

約数和(自身を含む): 4693211520

約数和(自身を除く): 2675432080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4639, 5437, 9278, 10874, 18556, 21748, 23195, 27185, 37112, 43496, 46390, 54370, 74224, 86992, 92780, 108740, 185560, 217480, 371120, 434960, 25222243, 50444486, 100888972, 126111215, 201777944, 252222430, 403555888, 504444860, 1008889720, 2017779440]

約数ペア:

[(1, 2017779440), (2, 1008889720), (4, 504444860), (5, 403555888), (8, 252222430), (10, 201777944), (16, 126111215), (20, 100888972), (40, 50444486), (80, 25222243), (4639, 434960), (5437, 371120), (9278, 217480), (10874, 185560), (18556, 108740), (21748, 92780), (23195, 86992), (27185, 74224), (37112, 54370), (43496, 46390)]