18782500520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{247529}}^1$

素因数の和:247818

約数の個数: 64

約数和(自身を含む): 48476275200

約数和(自身を除く): 29693774680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 271, 280, 542, 1084, 1355, 1897, 2168, 2710, 3794, 5420, 7588, 9485, 10840, 15176, 18970, 37940, 75880, 247529, 495058, 990116, 1237645, 1732703, 1980232, 2475290, 3465406, 4950580, 6930812, 8663515, 9901160, 13861624, 17327030, 34654060, 67080359, 69308120, 134160718, 268321436, 335401795, 469562513, 536642872, 670803590, 939125026, 1341607180, 1878250052, 2347812565, 2683214360, 3756500104, 4695625130, 9391250260, 18782500520]

約数ペア:

[(1, 18782500520), (2, 9391250260), (4, 4695625130), (5, 3756500104), (7, 2683214360), (8, 2347812565), (10, 1878250052), (14, 1341607180), (20, 939125026), (28, 670803590), (35, 536642872), (40, 469562513), (56, 335401795), (70, 268321436), (140, 134160718), (271, 69308120), (280, 67080359), (542, 34654060), (1084, 17327030), (1355, 13861624), (1897, 9901160), (2168, 8663515), (2710, 6930812), (3794, 4950580), (5420, 3465406), (7588, 2475290), (9485, 1980232), (10840, 1732703), (15176, 1237645), (18970, 990116), (37940, 495058), (75880, 247529)]