18727040

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1009}}^1$

素因数の和:1057

約数の個数: 64

約数和(自身を含む): 46359000

約数和(自身を除く): 27631960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1009, 1160, 1856, 2018, 2320, 3712, 4036, 4640, 5045, 8072, 9280, 10090, 16144, 18560, 20180, 29261, 32288, 40360, 58522, 64576, 80720, 117044, 129152, 146305, 161440, 234088, 292610, 322880, 468176, 585220, 645760, 936352, 1170440, 1872704, 2340880, 3745408, 4681760, 9363520, 18727040]

約数ペア:

[(1, 18727040), (2, 9363520), (4, 4681760), (5, 3745408), (8, 2340880), (10, 1872704), (16, 1170440), (20, 936352), (29, 645760), (32, 585220), (40, 468176), (58, 322880), (64, 292610), (80, 234088), (116, 161440), (128, 146305), (145, 129152), (160, 117044), (232, 80720), (290, 64576), (320, 58522), (464, 40360), (580, 32288), (640, 29261), (928, 20180), (1009, 18560), (1160, 16144), (1856, 10090), (2018, 9280), (2320, 8072), (3712, 5045), (4036, 4640)]