221870420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{7907}}^1$

素因数の和:8000

約数の個数: 48

約数和(自身を含む): 494218368

約数和(自身を除く): 272347948

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 610, 1220, 1403, 2806, 5612, 7015, 7907, 14030, 15814, 28060, 31628, 39535, 79070, 158140, 181861, 363722, 482327, 727444, 909305, 964654, 1818610, 1929308, 2411635, 3637220, 4823270, 9646540, 11093521, 22187042, 44374084, 55467605, 110935210, 221870420]

約数ペア:

[(1, 221870420), (2, 110935210), (4, 55467605), (5, 44374084), (10, 22187042), (20, 11093521), (23, 9646540), (46, 4823270), (61, 3637220), (92, 2411635), (115, 1929308), (122, 1818610), (230, 964654), (244, 909305), (305, 727444), (460, 482327), (610, 363722), (1220, 181861), (1403, 158140), (2806, 79070), (5612, 39535), (7015, 31628), (7907, 28060), (14030, 15814)]