77866940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{204913}}^1$

素因数の和:204941

約数の個数: 24

約数和(自身を含む): 172127760

約数和(自身を除く): 94260820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 204913, 409826, 819652, 1024565, 2049130, 3893347, 4098260, 7786694, 15573388, 19466735, 38933470, 77866940]

約数ペア:

[(1, 77866940), (2, 38933470), (4, 19466735), (5, 15573388), (10, 7786694), (19, 4098260), (20, 3893347), (38, 2049130), (76, 1024565), (95, 819652), (190, 409826), (380, 204913)]