18883215728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{193}}^1\times {\mathrm{2719}}^1$

素因数の和:3106

約数の個数: 80

約数和(自身を含む): 39848282880

約数和(自身を除く): 20965067152

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 173, 193, 208, 346, 386, 692, 772, 1384, 1544, 2249, 2509, 2719, 2768, 3088, 4498, 5018, 5438, 8996, 10036, 10876, 17992, 20072, 21752, 33389, 35347, 35984, 40144, 43504, 66778, 70694, 133556, 141388, 267112, 282776, 434057, 470387, 524767, 534224, 565552, 868114, 940774, 1049534, 1736228, 1881548, 2099068, 3472456, 3763096, 4198136, 6115031, 6821971, 6944912, 7526192, 8396272, 12230062, 13643942, 24460124, 27287884, 48920248, 54575768, 90784691, 97840496, 109151536, 181569382, 363138764, 726277528, 1180200983, 1452555056, 2360401966, 4720803932, 9441607864, 18883215728]

約数ペア:

[(1, 18883215728), (2, 9441607864), (4, 4720803932), (8, 2360401966), (13, 1452555056), (16, 1180200983), (26, 726277528), (52, 363138764), (104, 181569382), (173, 109151536), (193, 97840496), (208, 90784691), (346, 54575768), (386, 48920248), (692, 27287884), (772, 24460124), (1384, 13643942), (1544, 12230062), (2249, 8396272), (2509, 7526192), (2719, 6944912), (2768, 6821971), (3088, 6115031), (4498, 4198136), (5018, 3763096), (5438, 3472456), (8996, 2099068), (10036, 1881548), (10876, 1736228), (17992, 1049534), (20072, 940774), (21752, 868114), (33389, 565552), (35347, 534224), (35984, 524767), (40144, 470387), (43504, 434057), (66778, 282776), (70694, 267112), (133556, 141388)]