256213215

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 476199360

約数和(自身を除く): 219986145

約数列:

[1, 3, 5, 9, 15, 23, 45, 47, 69, 115, 141, 207, 229, 235, 345, 423, 529, 687, 705, 1035, 1081, 1145, 1587, 2061, 2115, 2645, 3243, 3435, 4761, 5267, 5405, 7935, 9729, 10305, 10763, 15801, 16215, 23805, 24863, 26335, 32289, 47403, 48645, 53815, 74589, 79005, 96867, 121141, 124315, 161445, 223767, 237015, 247549, 363423, 372945, 484335, 605705, 742647, 1090269, 1118835, 1237745, 1817115, 2227941, 3713235, 5451345, 5693627, 11139705, 17080881, 28468135, 51242643, 85404405, 256213215]

約数ペア:

[(1, 256213215), (3, 85404405), (5, 51242643), (9, 28468135), (15, 17080881), (23, 11139705), (45, 5693627), (47, 5451345), (69, 3713235), (115, 2227941), (141, 1817115), (207, 1237745), (229, 1118835), (235, 1090269), (345, 742647), (423, 605705), (529, 484335), (687, 372945), (705, 363423), (1035, 247549), (1081, 237015), (1145, 223767), (1587, 161445), (2061, 124315), (2115, 121141), (2645, 96867), (3243, 79005), (3435, 74589), (4761, 53815), (5267, 48645), (5405, 47403), (7935, 32289), (9729, 26335), (10305, 24863), (10763, 23805), (15801, 16215)]