20121869075

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{37199}}^1$

素因数の和:37508

約数の個数: 48

約数和(自身を含む): 31219430400

約数和(自身を除く): 11097561325

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 281, 385, 1405, 1925, 1967, 3091, 7025, 9835, 15455, 21637, 37199, 49175, 77275, 108185, 185995, 260393, 409189, 540925, 929975, 1301965, 2045945, 2864323, 6509825, 10229725, 10452919, 14321615, 52264595, 71608075, 73170433, 114982109, 261322975, 365852165, 574910545, 804874763, 1829260825, 2874552725, 4024373815, 20121869075]

約数ペア:

[(1, 20121869075), (5, 4024373815), (7, 2874552725), (11, 1829260825), (25, 804874763), (35, 574910545), (55, 365852165), (77, 261322975), (175, 114982109), (275, 73170433), (281, 71608075), (385, 52264595), (1405, 14321615), (1925, 10452919), (1967, 10229725), (3091, 6509825), (7025, 2864323), (9835, 2045945), (15455, 1301965), (21637, 929975), (37199, 540925), (49175, 409189), (77275, 260393), (108185, 185995)]