20759284

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:185

約数の個数: 72

約数和(自身を含む): 46484928

約数和(自身を除く): 25725644

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 107, 164, 169, 182, 214, 287, 338, 364, 428, 533, 574, 676, 749, 1066, 1148, 1183, 1391, 1498, 2132, 2366, 2782, 2996, 3731, 4387, 4732, 5564, 6929, 7462, 8774, 9737, 13858, 14924, 17548, 18083, 19474, 27716, 30709, 36166, 38948, 48503, 57031, 61418, 72332, 97006, 114062, 122836, 126581, 194012, 228124, 253162, 399217, 506324, 741403, 798434, 1482806, 1596868, 2965612, 5189821, 10379642, 20759284]

約数ペア:

[(1, 20759284), (2, 10379642), (4, 5189821), (7, 2965612), (13, 1596868), (14, 1482806), (26, 798434), (28, 741403), (41, 506324), (52, 399217), (82, 253162), (91, 228124), (107, 194012), (164, 126581), (169, 122836), (182, 114062), (214, 97006), (287, 72332), (338, 61418), (364, 57031), (428, 48503), (533, 38948), (574, 36166), (676, 30709), (749, 27716), (1066, 19474), (1148, 18083), (1183, 17548), (1391, 14924), (1498, 13858), (2132, 9737), (2366, 8774), (2782, 7462), (2996, 6929), (3731, 5564), (4387, 4732)]