19771040

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4261}}^1$

素因数の和:4305

約数の個数: 48

約数和(自身を含む): 48331080

約数和(自身を除く): 28560040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4261, 4640, 8522, 17044, 21305, 34088, 42610, 68176, 85220, 123569, 136352, 170440, 247138, 340880, 494276, 617845, 681760, 988552, 1235690, 1977104, 2471380, 3954208, 4942760, 9885520, 19771040]

約数ペア:

[(1, 19771040), (2, 9885520), (4, 4942760), (5, 3954208), (8, 2471380), (10, 1977104), (16, 1235690), (20, 988552), (29, 681760), (32, 617845), (40, 494276), (58, 340880), (80, 247138), (116, 170440), (145, 136352), (160, 123569), (232, 85220), (290, 68176), (464, 42610), (580, 34088), (928, 21305), (1160, 17044), (2320, 8522), (4261, 4640)]