51977260

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 112412160

約数和(自身を除く): 60434900

約数列:

[1, 2, 4, 5, 10, 20, 67, 79, 134, 158, 268, 316, 335, 395, 491, 670, 790, 982, 1340, 1580, 1964, 2455, 4910, 5293, 9820, 10586, 21172, 26465, 32897, 38789, 52930, 65794, 77578, 105860, 131588, 155156, 164485, 193945, 328970, 387890, 657940, 775780, 2598863, 5197726, 10395452, 12994315, 25988630, 51977260]

約数ペア:

[(1, 51977260), (2, 25988630), (4, 12994315), (5, 10395452), (10, 5197726), (20, 2598863), (67, 775780), (79, 657940), (134, 387890), (158, 328970), (268, 193945), (316, 164485), (335, 155156), (395, 131588), (491, 105860), (670, 77578), (790, 65794), (982, 52930), (1340, 38789), (1580, 32897), (1964, 26465), (2455, 21172), (4910, 10586), (5293, 9820)]