17996920

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1931}}^1$

素因数の和:2175

約数の個数: 32

約数和(自身を含む): 40687920

約数和(自身を除く): 22691000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 1931, 2330, 3862, 4660, 7724, 9320, 9655, 15448, 19310, 38620, 77240, 449923, 899846, 1799692, 2249615, 3599384, 4499230, 8998460, 17996920]

約数ペア:

[(1, 17996920), (2, 8998460), (4, 4499230), (5, 3599384), (8, 2249615), (10, 1799692), (20, 899846), (40, 449923), (233, 77240), (466, 38620), (932, 19310), (1165, 15448), (1864, 9655), (1931, 9320), (2330, 7724), (3862, 4660)]