20580894

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{443}}^1$

素因数の和:569

約数の個数: 48

約数和(自身を含む): 46753200

約数和(自身を除く): 26172306

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 89, 174, 178, 261, 267, 443, 522, 534, 801, 886, 1329, 1602, 2581, 2658, 3987, 5162, 7743, 7974, 12847, 15486, 23229, 25694, 38541, 39427, 46458, 77082, 78854, 115623, 118281, 231246, 236562, 354843, 709686, 1143383, 2286766, 3430149, 6860298, 10290447, 20580894]

約数ペア:

[(1, 20580894), (2, 10290447), (3, 6860298), (6, 3430149), (9, 2286766), (18, 1143383), (29, 709686), (58, 354843), (87, 236562), (89, 231246), (174, 118281), (178, 115623), (261, 78854), (267, 77082), (443, 46458), (522, 39427), (534, 38541), (801, 25694), (886, 23229), (1329, 15486), (1602, 12847), (2581, 7974), (2658, 7743), (3987, 5162)]