18272240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{487}}^1$

素因数の和:574

約数の個数: 80

約数和(自身を含む): 49377792

約数和(自身を除く): 31105552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 487, 536, 560, 670, 938, 974, 1072, 1340, 1876, 1948, 2345, 2435, 2680, 3409, 3752, 3896, 4690, 4870, 5360, 6818, 7504, 7792, 9380, 9740, 13636, 17045, 18760, 19480, 27272, 32629, 34090, 37520, 38960, 54544, 65258, 68180, 130516, 136360, 163145, 228403, 261032, 272720, 326290, 456806, 522064, 652580, 913612, 1142015, 1305160, 1827224, 2284030, 2610320, 3654448, 4568060, 9136120, 18272240]

約数ペア:

[(1, 18272240), (2, 9136120), (4, 4568060), (5, 3654448), (7, 2610320), (8, 2284030), (10, 1827224), (14, 1305160), (16, 1142015), (20, 913612), (28, 652580), (35, 522064), (40, 456806), (56, 326290), (67, 272720), (70, 261032), (80, 228403), (112, 163145), (134, 136360), (140, 130516), (268, 68180), (280, 65258), (335, 54544), (469, 38960), (487, 37520), (536, 34090), (560, 32629), (670, 27272), (938, 19480), (974, 18760), (1072, 17045), (1340, 13636), (1876, 9740), (1948, 9380), (2345, 7792), (2435, 7504), (2680, 6818), (3409, 5360), (3752, 4870), (3896, 4690)]