21480492560

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{487307}}^1$

素因数の和:487368

約数の個数: 80

約数和(自身を含む): 54383572800

約数和(自身を除く): 32903080240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 38, 40, 58, 76, 80, 95, 116, 145, 152, 190, 232, 290, 304, 380, 464, 551, 580, 760, 1102, 1160, 1520, 2204, 2320, 2755, 4408, 5510, 8816, 11020, 22040, 44080, 487307, 974614, 1949228, 2436535, 3898456, 4873070, 7796912, 9258833, 9746140, 14131903, 18517666, 19492280, 28263806, 37035332, 38984560, 46294165, 56527612, 70659515, 74070664, 92588330, 113055224, 141319030, 148141328, 185176660, 226110448, 268506157, 282638060, 370353320, 537012314, 565276120, 740706640, 1074024628, 1130552240, 1342530785, 2148049256, 2685061570, 4296098512, 5370123140, 10740246280, 21480492560]

約数ペア:

[(1, 21480492560), (2, 10740246280), (4, 5370123140), (5, 4296098512), (8, 2685061570), (10, 2148049256), (16, 1342530785), (19, 1130552240), (20, 1074024628), (29, 740706640), (38, 565276120), (40, 537012314), (58, 370353320), (76, 282638060), (80, 268506157), (95, 226110448), (116, 185176660), (145, 148141328), (152, 141319030), (190, 113055224), (232, 92588330), (290, 74070664), (304, 70659515), (380, 56527612), (464, 46294165), (551, 38984560), (580, 37035332), (760, 28263806), (1102, 19492280), (1160, 18517666), (1520, 14131903), (2204, 9746140), (2320, 9258833), (2755, 7796912), (4408, 4873070), (5510, 3898456), (8816, 2436535), (11020, 1949228), (22040, 974614), (44080, 487307)]