64332784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{491}}^1$

素因数の和:949

約数の個数: 40

約数和(自身を含む): 131777280

約数和(自身を除く): 67444496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 431, 491, 862, 982, 1724, 1964, 3448, 3928, 6896, 7856, 8189, 9329, 16378, 18658, 32756, 37316, 65512, 74632, 131024, 149264, 211621, 423242, 846484, 1692968, 3385936, 4020799, 8041598, 16083196, 32166392, 64332784]

約数ペア:

[(1, 64332784), (2, 32166392), (4, 16083196), (8, 8041598), (16, 4020799), (19, 3385936), (38, 1692968), (76, 846484), (152, 423242), (304, 211621), (431, 149264), (491, 131024), (862, 74632), (982, 65512), (1724, 37316), (1964, 32756), (3448, 18658), (3928, 16378), (6896, 9329), (7856, 8189)]