19900270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3257}}^1$

素因数の和:3324

約数の個数: 32

約数和(自身を含む): 39408768

約数和(自身を除く): 19508498

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 235, 470, 611, 1222, 3055, 3257, 6110, 6514, 16285, 32570, 42341, 84682, 153079, 211705, 306158, 423410, 765395, 1530790, 1990027, 3980054, 9950135, 19900270]

約数ペア:

[(1, 19900270), (2, 9950135), (5, 3980054), (10, 1990027), (13, 1530790), (26, 765395), (47, 423410), (65, 306158), (94, 211705), (130, 153079), (235, 84682), (470, 42341), (611, 32570), (1222, 16285), (3055, 6514), (3257, 6110)]