1998724

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 72

約数和(自身を含む): 4813760

約数和(自身を除く): 2815036

約数列:

[1, 2, 4, 7, 13, 14, 17, 19, 26, 28, 34, 38, 52, 68, 76, 91, 119, 133, 182, 221, 238, 247, 266, 289, 323, 364, 442, 476, 494, 532, 578, 646, 884, 988, 1156, 1292, 1547, 1729, 2023, 2261, 3094, 3458, 3757, 4046, 4199, 4522, 5491, 6188, 6916, 7514, 8092, 8398, 9044, 10982, 15028, 16796, 21964, 26299, 29393, 38437, 52598, 58786, 71383, 76874, 105196, 117572, 142766, 153748, 285532, 499681, 999362, 1998724]

約数ペア:

[(1, 1998724), (2, 999362), (4, 499681), (7, 285532), (13, 153748), (14, 142766), (17, 117572), (19, 105196), (26, 76874), (28, 71383), (34, 58786), (38, 52598), (52, 38437), (68, 29393), (76, 26299), (91, 21964), (119, 16796), (133, 15028), (182, 10982), (221, 9044), (238, 8398), (247, 8092), (266, 7514), (289, 6916), (323, 6188), (364, 5491), (442, 4522), (476, 4199), (494, 4046), (532, 3757), (578, 3458), (646, 3094), (884, 2261), (988, 2023), (1156, 1729), (1292, 1547)]