20464216

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:200

約数の個数: 64

約数和(自身を含む): 43084800

約数和(自身を除く): 22620584

約数列:

[1, 2, 4, 8, 19, 31, 38, 43, 62, 76, 86, 101, 124, 152, 172, 202, 248, 344, 404, 589, 808, 817, 1178, 1333, 1634, 1919, 2356, 2666, 3131, 3268, 3838, 4343, 4712, 5332, 6262, 6536, 7676, 8686, 10664, 12524, 15352, 17372, 25048, 25327, 34744, 50654, 59489, 82517, 101308, 118978, 134633, 165034, 202616, 237956, 269266, 330068, 475912, 538532, 660136, 1077064, 2558027, 5116054, 10232108, 20464216]

約数ペア:

[(1, 20464216), (2, 10232108), (4, 5116054), (8, 2558027), (19, 1077064), (31, 660136), (38, 538532), (43, 475912), (62, 330068), (76, 269266), (86, 237956), (101, 202616), (124, 165034), (152, 134633), (172, 118978), (202, 101308), (248, 82517), (344, 59489), (404, 50654), (589, 34744), (808, 25327), (817, 25048), (1178, 17372), (1333, 15352), (1634, 12524), (1919, 10664), (2356, 8686), (2666, 7676), (3131, 6536), (3268, 6262), (3838, 5332), (4343, 4712)]