291378980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{12791}}^1$

素因数の和:12884

約数の個数: 48

約数和(自身を含む): 657611136

約数和(自身を除く): 366232156

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 134, 170, 268, 335, 340, 670, 1139, 1340, 2278, 4556, 5695, 11390, 12791, 22780, 25582, 51164, 63955, 127910, 217447, 255820, 434894, 856997, 869788, 1087235, 1713994, 2174470, 3427988, 4284985, 4348940, 8569970, 14568949, 17139940, 29137898, 58275796, 72844745, 145689490, 291378980]

約数ペア:

[(1, 291378980), (2, 145689490), (4, 72844745), (5, 58275796), (10, 29137898), (17, 17139940), (20, 14568949), (34, 8569970), (67, 4348940), (68, 4284985), (85, 3427988), (134, 2174470), (170, 1713994), (268, 1087235), (335, 869788), (340, 856997), (670, 434894), (1139, 255820), (1340, 217447), (2278, 127910), (4556, 63955), (5695, 51164), (11390, 25582), (12791, 22780)]