20564944

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:148

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 24432176

約数列:

[1, 2, 4, 8, 16, 23, 29, 41, 46, 47, 58, 82, 92, 94, 116, 164, 184, 188, 232, 328, 368, 376, 464, 656, 667, 752, 943, 1081, 1189, 1334, 1363, 1886, 1927, 2162, 2378, 2668, 2726, 3772, 3854, 4324, 4756, 5336, 5452, 7544, 7708, 8648, 9512, 10672, 10904, 15088, 15416, 17296, 19024, 21808, 27347, 30832, 31349, 44321, 54694, 55883, 62698, 88642, 109388, 111766, 125396, 177284, 218776, 223532, 250792, 354568, 437552, 447064, 501584, 709136, 894128, 1285309, 2570618, 5141236, 10282472, 20564944]

約数ペア:

[(1, 20564944), (2, 10282472), (4, 5141236), (8, 2570618), (16, 1285309), (23, 894128), (29, 709136), (41, 501584), (46, 447064), (47, 437552), (58, 354568), (82, 250792), (92, 223532), (94, 218776), (116, 177284), (164, 125396), (184, 111766), (188, 109388), (232, 88642), (328, 62698), (368, 55883), (376, 54694), (464, 44321), (656, 31349), (667, 30832), (752, 27347), (943, 21808), (1081, 19024), (1189, 17296), (1334, 15416), (1363, 15088), (1886, 10904), (1927, 10672), (2162, 9512), (2378, 8648), (2668, 7708), (2726, 7544), (3772, 5452), (3854, 5336), (4324, 4756)]