19475720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44263}}^1$

素因数の和:44285

約数の個数: 32

約数和(自身を含む): 47805120

約数和(自身を除く): 28329400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44263, 88526, 177052, 221315, 354104, 442630, 486893, 885260, 973786, 1770520, 1947572, 2434465, 3895144, 4868930, 9737860, 19475720]

約数ペア:

[(1, 19475720), (2, 9737860), (4, 4868930), (5, 3895144), (8, 2434465), (10, 1947572), (11, 1770520), (20, 973786), (22, 885260), (40, 486893), (44, 442630), (55, 354104), (88, 221315), (110, 177052), (220, 88526), (440, 44263)]