18453890

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2897}}^1$

素因数の和:2931

約数の個数: 48

約数和(自身を含む): 41626872

約数和(自身を除く): 23172982

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 2897, 3185, 5794, 6370, 14485, 20279, 28970, 37661, 40558, 75322, 101395, 141953, 188305, 202790, 263627, 283906, 376610, 527254, 709765, 1318135, 1419530, 1845389, 2636270, 3690778, 9226945, 18453890]

約数ペア:

[(1, 18453890), (2, 9226945), (5, 3690778), (7, 2636270), (10, 1845389), (13, 1419530), (14, 1318135), (26, 709765), (35, 527254), (49, 376610), (65, 283906), (70, 263627), (91, 202790), (98, 188305), (130, 141953), (182, 101395), (245, 75322), (455, 40558), (490, 37661), (637, 28970), (910, 20279), (1274, 14485), (2897, 6370), (3185, 5794)]