64723220

素因数分解:

$2^2\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{2357}}^1$

素因数の和:3739

約数の個数: 24

約数和(自身を含む): 136075464

約数和(自身を除く): 71352244

約数列:

[1, 2, 4, 5, 10, 20, 1373, 2357, 2746, 4714, 5492, 6865, 9428, 11785, 13730, 23570, 27460, 47140, 3236161, 6472322, 12944644, 16180805, 32361610, 64723220]

約数ペア:

[(1, 64723220), (2, 32361610), (4, 16180805), (5, 12944644), (10, 6472322), (20, 3236161), (1373, 47140), (2357, 27460), (2746, 23570), (4714, 13730), (5492, 11785), (6865, 9428)]