81272240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{8537}}^1$

素因数の和:8574

約数の個数: 80

約数和(自身を含む): 228681792

約数和(自身を除く): 147409552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2380, 4760, 8537, 9520, 17074, 34148, 42685, 59759, 68296, 85370, 119518, 136592, 145129, 170740, 239036, 290258, 298795, 341480, 478072, 580516, 597590, 682960, 725645, 956144, 1015903, 1161032, 1195180, 1451290, 2031806, 2322064, 2390360, 2902580, 4063612, 4780720, 5079515, 5805160, 8127224, 10159030, 11610320, 16254448, 20318060, 40636120, 81272240]

約数ペア:

[(1, 81272240), (2, 40636120), (4, 20318060), (5, 16254448), (7, 11610320), (8, 10159030), (10, 8127224), (14, 5805160), (16, 5079515), (17, 4780720), (20, 4063612), (28, 2902580), (34, 2390360), (35, 2322064), (40, 2031806), (56, 1451290), (68, 1195180), (70, 1161032), (80, 1015903), (85, 956144), (112, 725645), (119, 682960), (136, 597590), (140, 580516), (170, 478072), (238, 341480), (272, 298795), (280, 290258), (340, 239036), (476, 170740), (560, 145129), (595, 136592), (680, 119518), (952, 85370), (1190, 68296), (1360, 59759), (1904, 42685), (2380, 34148), (4760, 17074), (8537, 9520)]