299747720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{182773}}^1$

素因数の和:182825

約数の個数: 32

約数和(自身を含む): 690885720

約数和(自身を除く): 391138000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 182773, 365546, 731092, 913865, 1462184, 1827730, 3655460, 7310920, 7493693, 14987386, 29974772, 37468465, 59949544, 74936930, 149873860, 299747720]

約数ペア:

[(1, 299747720), (2, 149873860), (4, 74936930), (5, 59949544), (8, 37468465), (10, 29974772), (20, 14987386), (40, 7493693), (41, 7310920), (82, 3655460), (164, 1827730), (205, 1462184), (328, 913865), (410, 731092), (820, 365546), (1640, 182773)]