20049008

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 47663616

約数和(自身を除く): 27614608

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 43, 46, 56, 86, 92, 112, 161, 172, 181, 184, 301, 322, 344, 362, 368, 602, 644, 688, 724, 989, 1204, 1267, 1288, 1448, 1978, 2408, 2534, 2576, 2896, 3956, 4163, 4816, 5068, 6923, 7783, 7912, 8326, 10136, 13846, 15566, 15824, 16652, 20272, 27692, 29141, 31132, 33304, 54481, 55384, 58282, 62264, 66608, 108962, 110768, 116564, 124528, 179009, 217924, 233128, 358018, 435848, 466256, 716036, 871696, 1253063, 1432072, 2506126, 2864144, 5012252, 10024504, 20049008]

約数ペア:

[(1, 20049008), (2, 10024504), (4, 5012252), (7, 2864144), (8, 2506126), (14, 1432072), (16, 1253063), (23, 871696), (28, 716036), (43, 466256), (46, 435848), (56, 358018), (86, 233128), (92, 217924), (112, 179009), (161, 124528), (172, 116564), (181, 110768), (184, 108962), (301, 66608), (322, 62264), (344, 58282), (362, 55384), (368, 54481), (602, 33304), (644, 31132), (688, 29141), (724, 27692), (989, 20272), (1204, 16652), (1267, 15824), (1288, 15566), (1448, 13846), (1978, 10136), (2408, 8326), (2534, 7912), (2576, 7783), (2896, 6923), (3956, 5068), (4163, 4816)]