18208520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1427}}^1$

素因数の和:1478

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 28058680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 110, 116, 145, 220, 232, 290, 319, 440, 580, 638, 1160, 1276, 1427, 1595, 2552, 2854, 3190, 5708, 6380, 7135, 11416, 12760, 14270, 15697, 28540, 31394, 41383, 57080, 62788, 78485, 82766, 125576, 156970, 165532, 206915, 313940, 331064, 413830, 455213, 627880, 827660, 910426, 1655320, 1820852, 2276065, 3641704, 4552130, 9104260, 18208520]

約数ペア:

[(1, 18208520), (2, 9104260), (4, 4552130), (5, 3641704), (8, 2276065), (10, 1820852), (11, 1655320), (20, 910426), (22, 827660), (29, 627880), (40, 455213), (44, 413830), (55, 331064), (58, 313940), (88, 206915), (110, 165532), (116, 156970), (145, 125576), (220, 82766), (232, 78485), (290, 62788), (319, 57080), (440, 41383), (580, 31394), (638, 28540), (1160, 15697), (1276, 14270), (1427, 12760), (1595, 11416), (2552, 7135), (2854, 6380), (3190, 5708)]