217897490

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1\times {\mathrm{683}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 399992256

約数和(自身を除く): 182094766

約数列:

[1, 2, 5, 10, 61, 122, 305, 523, 610, 683, 1046, 1366, 2615, 3415, 5230, 6830, 31903, 41663, 63806, 83326, 159515, 208315, 319030, 357209, 416630, 714418, 1786045, 3572090, 21789749, 43579498, 108948745, 217897490]

約数ペア:

[(1, 217897490), (2, 108948745), (5, 43579498), (10, 21789749), (61, 3572090), (122, 1786045), (305, 714418), (523, 416630), (610, 357209), (683, 319030), (1046, 208315), (1366, 159515), (2615, 83326), (3415, 63806), (5230, 41663), (6830, 31903)]