20139525

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1$

素因数の和:715

約数の個数: 72

約数和(自身を含む): 43459520

約数和(自身を除く): 23319995

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 25, 35, 45, 57, 63, 75, 95, 105, 133, 171, 175, 225, 285, 315, 399, 475, 525, 665, 673, 855, 1197, 1425, 1575, 1995, 2019, 3325, 3365, 4275, 4711, 5985, 6057, 9975, 10095, 12787, 14133, 16825, 23555, 29925, 30285, 38361, 42399, 50475, 63935, 70665, 89509, 115083, 117775, 151425, 191805, 211995, 268527, 319675, 353325, 447545, 575415, 805581, 959025, 1059975, 1342635, 2237725, 2877075, 4027905, 6713175, 20139525]

約数ペア:

[(1, 20139525), (3, 6713175), (5, 4027905), (7, 2877075), (9, 2237725), (15, 1342635), (19, 1059975), (21, 959025), (25, 805581), (35, 575415), (45, 447545), (57, 353325), (63, 319675), (75, 268527), (95, 211995), (105, 191805), (133, 151425), (171, 117775), (175, 115083), (225, 89509), (285, 70665), (315, 63935), (399, 50475), (475, 42399), (525, 38361), (665, 30285), (673, 29925), (855, 23555), (1197, 16825), (1425, 14133), (1575, 12787), (1995, 10095), (2019, 9975), (3325, 6057), (3365, 5985), (4275, 4711)]