19546160

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{929}}^1$

素因数の和:1205

約数の個数: 40

約数和(自身を含む): 45666720

約数和(自身を除く): 26120560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 929, 1052, 1315, 1858, 2104, 2630, 3716, 4208, 4645, 5260, 7432, 9290, 10520, 14864, 18580, 21040, 37160, 74320, 244327, 488654, 977308, 1221635, 1954616, 2443270, 3909232, 4886540, 9773080, 19546160]

約数ペア:

[(1, 19546160), (2, 9773080), (4, 4886540), (5, 3909232), (8, 2443270), (10, 1954616), (16, 1221635), (20, 977308), (40, 488654), (80, 244327), (263, 74320), (526, 37160), (929, 21040), (1052, 18580), (1315, 14864), (1858, 10520), (2104, 9290), (2630, 7432), (3716, 5260), (4208, 4645)]