18449795

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 29804544

約数和(自身を除く): 11354749

約数列:

[1, 5, 7, 13, 23, 35, 41, 43, 65, 91, 115, 161, 205, 215, 287, 299, 301, 455, 533, 559, 805, 943, 989, 1435, 1495, 1505, 1763, 2093, 2665, 2795, 3731, 3913, 4715, 4945, 6601, 6923, 8815, 10465, 12259, 12341, 12857, 18655, 19565, 22919, 33005, 34615, 40549, 61295, 61705, 64285, 85813, 89999, 114595, 160433, 202745, 283843, 429065, 449995, 527137, 802165, 1419215, 2635685, 3689959, 18449795]

約数ペア:

[(1, 18449795), (5, 3689959), (7, 2635685), (13, 1419215), (23, 802165), (35, 527137), (41, 449995), (43, 429065), (65, 283843), (91, 202745), (115, 160433), (161, 114595), (205, 89999), (215, 85813), (287, 64285), (299, 61705), (301, 61295), (455, 40549), (533, 34615), (559, 33005), (805, 22919), (943, 19565), (989, 18655), (1435, 12857), (1495, 12341), (1505, 12259), (1763, 10465), (2093, 8815), (2665, 6923), (2795, 6601), (3731, 4945), (3913, 4715)]