20290545

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{229}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 38750400

約数和(自身を除く): 18459855

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 179, 229, 495, 537, 687, 895, 1145, 1611, 1969, 2061, 2519, 2685, 3435, 5907, 7557, 8055, 9845, 10305, 12595, 17721, 22671, 29535, 37785, 40991, 88605, 113355, 122973, 204955, 368919, 450901, 614865, 1352703, 1844595, 2254505, 4058109, 6763515, 20290545]

約数ペア:

[(1, 20290545), (3, 6763515), (5, 4058109), (9, 2254505), (11, 1844595), (15, 1352703), (33, 614865), (45, 450901), (55, 368919), (99, 204955), (165, 122973), (179, 113355), (229, 88605), (495, 40991), (537, 37785), (687, 29535), (895, 22671), (1145, 17721), (1611, 12595), (1969, 10305), (2061, 9845), (2519, 8055), (2685, 7557), (3435, 5907)]