81770414

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3691}}^1$

素因数の和:3776

約数の個数: 32

約数和(自身を含む): 143544960

約数和(自身を除く): 61774546

約数列:

[1, 2, 11, 19, 22, 38, 53, 106, 209, 418, 583, 1007, 1166, 2014, 3691, 7382, 11077, 22154, 40601, 70129, 81202, 140258, 195623, 391246, 771419, 1542838, 2151853, 3716837, 4303706, 7433674, 40885207, 81770414]

約数ペア:

[(1, 81770414), (2, 40885207), (11, 7433674), (19, 4303706), (22, 3716837), (38, 2151853), (53, 1542838), (106, 771419), (209, 391246), (418, 195623), (583, 140258), (1007, 81202), (1166, 70129), (2014, 40601), (3691, 22154), (7382, 11077)]