1821987760

素因数分解:

$2^4\times 5^1\times {\mathrm{977}}^1\times {\mathrm{23311}}^1$

素因数の和:24301

約数の個数: 40

約数和(自身を含む): 4240639296

約数和(自身を除く): 2418651536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 977, 1954, 3908, 4885, 7816, 9770, 15632, 19540, 23311, 39080, 46622, 78160, 93244, 116555, 186488, 233110, 372976, 466220, 932440, 1864880, 22774847, 45549694, 91099388, 113874235, 182198776, 227748470, 364397552, 455496940, 910993880, 1821987760]

約数ペア:

[(1, 1821987760), (2, 910993880), (4, 455496940), (5, 364397552), (8, 227748470), (10, 182198776), (16, 113874235), (20, 91099388), (40, 45549694), (80, 22774847), (977, 1864880), (1954, 932440), (3908, 466220), (4885, 372976), (7816, 233110), (9770, 186488), (15632, 116555), (19540, 93244), (23311, 78160), (39080, 46622)]