66704840

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{8731}}^1$

素因数の和:8933

約数の個数: 32

約数和(自身を含む): 150888960

約数和(自身を除く): 84184120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 8731, 17462, 34924, 43655, 69848, 87310, 174620, 349240, 1667621, 3335242, 6670484, 8338105, 13340968, 16676210, 33352420, 66704840]

約数ペア:

[(1, 66704840), (2, 33352420), (4, 16676210), (5, 13340968), (8, 8338105), (10, 6670484), (20, 3335242), (40, 1667621), (191, 349240), (382, 174620), (764, 87310), (955, 69848), (1528, 43655), (1910, 34924), (3820, 17462), (7640, 8731)]