20641569328

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{5197}}^1$

素因数の和:5522

約数の個数: 80

約数和(自身を含む): 42880755456

約数和(自身を除く): 22239186128

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 86, 92, 172, 184, 251, 344, 368, 502, 688, 989, 1004, 1978, 2008, 3956, 4016, 5197, 5773, 7912, 10394, 10793, 11546, 15824, 20788, 21586, 23092, 41576, 43172, 46184, 83152, 86344, 92368, 119531, 172688, 223471, 239062, 248239, 446942, 478124, 496478, 893884, 956248, 992956, 1304447, 1787768, 1912496, 1985912, 2608894, 3575536, 3971824, 5139833, 5217788, 10279666, 10435576, 20559332, 20871152, 30002281, 41118664, 56091221, 60004562, 82237328, 112182442, 120009124, 224364884, 240018248, 448729768, 480036496, 897459536, 1290098083, 2580196166, 5160392332, 10320784664, 20641569328]

約数ペア:

[(1, 20641569328), (2, 10320784664), (4, 5160392332), (8, 2580196166), (16, 1290098083), (23, 897459536), (43, 480036496), (46, 448729768), (86, 240018248), (92, 224364884), (172, 120009124), (184, 112182442), (251, 82237328), (344, 60004562), (368, 56091221), (502, 41118664), (688, 30002281), (989, 20871152), (1004, 20559332), (1978, 10435576), (2008, 10279666), (3956, 5217788), (4016, 5139833), (5197, 3971824), (5773, 3575536), (7912, 2608894), (10394, 1985912), (10793, 1912496), (11546, 1787768), (15824, 1304447), (20788, 992956), (21586, 956248), (23092, 893884), (41576, 496478), (43172, 478124), (46184, 446942), (83152, 248239), (86344, 239062), (92368, 223471), (119531, 172688)]