223897995

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1999}}^1$

素因数の和:2160

約数の個数: 48

約数和(自身を含む): 411840000

約数和(自身を除く): 187942005

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 131, 171, 285, 393, 655, 855, 1179, 1965, 1999, 2489, 5895, 5997, 7467, 9995, 12445, 17991, 22401, 29985, 37335, 37981, 89955, 112005, 113943, 189905, 261869, 341829, 569715, 785607, 1309345, 1709145, 2356821, 3928035, 4975511, 11784105, 14926533, 24877555, 44779599, 74632665, 223897995]

約数ペア:

[(1, 223897995), (3, 74632665), (5, 44779599), (9, 24877555), (15, 14926533), (19, 11784105), (45, 4975511), (57, 3928035), (95, 2356821), (131, 1709145), (171, 1309345), (285, 785607), (393, 569715), (655, 341829), (855, 261869), (1179, 189905), (1965, 113943), (1999, 112005), (2489, 89955), (5895, 37981), (5997, 37335), (7467, 29985), (9995, 22401), (12445, 17991)]