19054640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{367}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 49282560

約数和(自身を除く): 30227920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 367, 440, 472, 590, 649, 734, 880, 944, 1180, 1298, 1468, 1835, 2360, 2596, 2936, 3245, 3670, 4037, 4720, 5192, 5872, 6490, 7340, 8074, 10384, 12980, 14680, 16148, 20185, 21653, 25960, 29360, 32296, 40370, 43306, 51920, 64592, 80740, 86612, 108265, 161480, 173224, 216530, 238183, 322960, 346448, 433060, 476366, 866120, 952732, 1190915, 1732240, 1905464, 2381830, 3810928, 4763660, 9527320, 19054640]

約数ペア:

[(1, 19054640), (2, 9527320), (4, 4763660), (5, 3810928), (8, 2381830), (10, 1905464), (11, 1732240), (16, 1190915), (20, 952732), (22, 866120), (40, 476366), (44, 433060), (55, 346448), (59, 322960), (80, 238183), (88, 216530), (110, 173224), (118, 161480), (176, 108265), (220, 86612), (236, 80740), (295, 64592), (367, 51920), (440, 43306), (472, 40370), (590, 32296), (649, 29360), (734, 25960), (880, 21653), (944, 20185), (1180, 16148), (1298, 14680), (1468, 12980), (1835, 10384), (2360, 8074), (2596, 7340), (2936, 6490), (3245, 5872), (3670, 5192), (4037, 4720)]