391231120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{5501}}^1$

素因数の和:5648

約数の個数: 80

約数和(自身を含む): 1047932928

約数和(自身を除く): 656701808

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 280, 508, 560, 635, 889, 1016, 1270, 1778, 2032, 2540, 3556, 4445, 5080, 5501, 7112, 8890, 10160, 11002, 14224, 17780, 22004, 27505, 35560, 38507, 44008, 55010, 71120, 77014, 88016, 110020, 154028, 192535, 220040, 308056, 385070, 440080, 616112, 698627, 770140, 1397254, 1540280, 2794508, 3080560, 3493135, 4890389, 5589016, 6986270, 9780778, 11178032, 13972540, 19561556, 24451945, 27945080, 39123112, 48903890, 55890160, 78246224, 97807780, 195615560, 391231120]

約数ペア:

[(1, 391231120), (2, 195615560), (4, 97807780), (5, 78246224), (7, 55890160), (8, 48903890), (10, 39123112), (14, 27945080), (16, 24451945), (20, 19561556), (28, 13972540), (35, 11178032), (40, 9780778), (56, 6986270), (70, 5589016), (80, 4890389), (112, 3493135), (127, 3080560), (140, 2794508), (254, 1540280), (280, 1397254), (508, 770140), (560, 698627), (635, 616112), (889, 440080), (1016, 385070), (1270, 308056), (1778, 220040), (2032, 192535), (2540, 154028), (3556, 110020), (4445, 88016), (5080, 77014), (5501, 71120), (7112, 55010), (8890, 44008), (10160, 38507), (11002, 35560), (14224, 27505), (17780, 22004)]