20187248

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:489

約数の個数: 40

約数和(自身を含む): 40882800

約数和(自身を除く): 20695552

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 139, 232, 278, 313, 464, 556, 626, 1112, 1252, 2224, 2504, 4031, 5008, 8062, 9077, 16124, 18154, 32248, 36308, 43507, 64496, 72616, 87014, 145232, 174028, 348056, 696112, 1261703, 2523406, 5046812, 10093624, 20187248]

約数ペア:

[(1, 20187248), (2, 10093624), (4, 5046812), (8, 2523406), (16, 1261703), (29, 696112), (58, 348056), (116, 174028), (139, 145232), (232, 87014), (278, 72616), (313, 64496), (464, 43507), (556, 36308), (626, 32248), (1112, 18154), (1252, 16124), (2224, 9077), (2504, 8062), (4031, 5008)]