217876490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 435939840

約数和(自身を除く): 218063350

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 169, 211, 235, 338, 422, 470, 611, 845, 1055, 1222, 1690, 2110, 2197, 2743, 3055, 4394, 5486, 6110, 7943, 9917, 10985, 13715, 15886, 19834, 21970, 27430, 35659, 39715, 49585, 71318, 79430, 99170, 103259, 128921, 178295, 206518, 257842, 356590, 463567, 516295, 644605, 927134, 1032590, 1289210, 1675973, 2317835, 3351946, 4635670, 8379865, 16759730, 21787649, 43575298, 108938245, 217876490]

約数ペア:

[(1, 217876490), (2, 108938245), (5, 43575298), (10, 21787649), (13, 16759730), (26, 8379865), (47, 4635670), (65, 3351946), (94, 2317835), (130, 1675973), (169, 1289210), (211, 1032590), (235, 927134), (338, 644605), (422, 516295), (470, 463567), (611, 356590), (845, 257842), (1055, 206518), (1222, 178295), (1690, 128921), (2110, 103259), (2197, 99170), (2743, 79430), (3055, 71318), (4394, 49585), (5486, 39715), (6110, 35659), (7943, 27430), (9917, 21970), (10985, 19834), (13715, 15886)]