20260396

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 42611184

約数和(自身を除く): 22350788

約数列:

[1, 2, 4, 13, 17, 26, 34, 41, 43, 52, 68, 82, 86, 164, 169, 172, 221, 338, 442, 533, 559, 676, 697, 731, 884, 1066, 1118, 1394, 1462, 1763, 2132, 2236, 2788, 2873, 2924, 3526, 5746, 6929, 7052, 7267, 9061, 9503, 11492, 13858, 14534, 18122, 19006, 22919, 27716, 29068, 29971, 36244, 38012, 45838, 59942, 91676, 117793, 119884, 123539, 235586, 247078, 297947, 389623, 471172, 494156, 595894, 779246, 1191788, 1558492, 5065099, 10130198, 20260396]

約数ペア:

[(1, 20260396), (2, 10130198), (4, 5065099), (13, 1558492), (17, 1191788), (26, 779246), (34, 595894), (41, 494156), (43, 471172), (52, 389623), (68, 297947), (82, 247078), (86, 235586), (164, 123539), (169, 119884), (172, 117793), (221, 91676), (338, 59942), (442, 45838), (533, 38012), (559, 36244), (676, 29971), (697, 29068), (731, 27716), (884, 22919), (1066, 19006), (1118, 18122), (1394, 14534), (1462, 13858), (1763, 11492), (2132, 9503), (2236, 9061), (2788, 7267), (2873, 7052), (2924, 6929), (3526, 5746)]