18686730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:543

約数の個数: 64

約数和(自身を含む): 47485440

約数和(自身を除く): 28798710

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 47, 58, 87, 94, 141, 145, 174, 235, 282, 290, 435, 457, 470, 705, 870, 914, 1363, 1371, 1410, 2285, 2726, 2742, 4089, 4570, 6815, 6855, 8178, 13253, 13630, 13710, 20445, 21479, 26506, 39759, 40890, 42958, 64437, 66265, 79518, 107395, 128874, 132530, 198795, 214790, 322185, 397590, 622891, 644370, 1245782, 1868673, 3114455, 3737346, 6228910, 9343365, 18686730]

約数ペア:

[(1, 18686730), (2, 9343365), (3, 6228910), (5, 3737346), (6, 3114455), (10, 1868673), (15, 1245782), (29, 644370), (30, 622891), (47, 397590), (58, 322185), (87, 214790), (94, 198795), (141, 132530), (145, 128874), (174, 107395), (235, 79518), (282, 66265), (290, 64437), (435, 42958), (457, 40890), (470, 39759), (705, 26506), (870, 21479), (914, 20445), (1363, 13710), (1371, 13630), (1410, 13253), (2285, 8178), (2726, 6855), (2742, 6815), (4089, 4570)]