215071505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 317634048

約数和(自身を除く): 102562543

約数列:

[1, 5, 11, 17, 23, 55, 73, 85, 115, 137, 187, 253, 365, 391, 685, 803, 935, 1241, 1265, 1507, 1679, 1955, 2329, 3151, 4015, 4301, 6205, 7535, 8395, 10001, 11645, 13651, 15755, 18469, 21505, 25619, 28543, 34661, 50005, 53567, 68255, 92345, 110011, 128095, 142715, 170017, 173305, 230023, 267835, 313973, 550055, 589237, 850085, 1150115, 1569865, 1870187, 2530253, 2946185, 3910391, 9350935, 12651265, 19551955, 43014301, 215071505]

約数ペア:

[(1, 215071505), (5, 43014301), (11, 19551955), (17, 12651265), (23, 9350935), (55, 3910391), (73, 2946185), (85, 2530253), (115, 1870187), (137, 1569865), (187, 1150115), (253, 850085), (365, 589237), (391, 550055), (685, 313973), (803, 267835), (935, 230023), (1241, 173305), (1265, 170017), (1507, 142715), (1679, 128095), (1955, 110011), (2329, 92345), (3151, 68255), (4015, 53567), (4301, 50005), (6205, 34661), (7535, 28543), (8395, 25619), (10001, 21505), (11645, 18469), (13651, 15755)]