281421687995

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{818717}}^1$

素因数の和:818820

約数の個数: 48

約数和(自身を含む): 416642315328

約数和(自身を除く): 135220627333

約数列:

[1, 5, 7, 23, 35, 49, 61, 115, 161, 245, 305, 427, 805, 1127, 1403, 2135, 2989, 5635, 7015, 9821, 14945, 49105, 68747, 343735, 818717, 4093585, 5731019, 18830491, 28655095, 40117133, 49941737, 94152455, 131813437, 200585665, 249708685, 349592159, 659067185, 922694059, 1148659951, 1747960795, 2447145113, 4613470295, 5743299755, 8040619657, 12235725565, 40203098285, 56284337599, 281421687995]

約数ペア:

[(1, 281421687995), (5, 56284337599), (7, 40203098285), (23, 12235725565), (35, 8040619657), (49, 5743299755), (61, 4613470295), (115, 2447145113), (161, 1747960795), (245, 1148659951), (305, 922694059), (427, 659067185), (805, 349592159), (1127, 249708685), (1403, 200585665), (2135, 131813437), (2989, 94152455), (5635, 49941737), (7015, 40117133), (9821, 28655095), (14945, 18830491), (49105, 5731019), (68747, 4093585), (343735, 818717)]