280216664

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{384913}}^1$

素因数の和:384939

約数の個数: 32

約数和(自身を含む): 646655520

約数和(自身を除く): 366438856

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 384913, 769826, 1539652, 2694391, 3079304, 5003869, 5388782, 10007738, 10777564, 20015476, 21555128, 35027083, 40030952, 70054166, 140108332, 280216664]

約数ペア:

[(1, 280216664), (2, 140108332), (4, 70054166), (7, 40030952), (8, 35027083), (13, 21555128), (14, 20015476), (26, 10777564), (28, 10007738), (52, 5388782), (56, 5003869), (91, 3079304), (104, 2694391), (182, 1539652), (364, 769826), (728, 384913)]