20031228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2741}}^1$

素因数の和:2787

約数の個数: 72

約数和(自身を含む): 59885280

約数和(自身を除く): 39854052

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 58, 63, 84, 87, 116, 126, 174, 203, 252, 261, 348, 406, 522, 609, 812, 1044, 1218, 1827, 2436, 2741, 3654, 5482, 7308, 8223, 10964, 16446, 19187, 24669, 32892, 38374, 49338, 57561, 76748, 79489, 98676, 115122, 158978, 172683, 230244, 238467, 317956, 345366, 476934, 556423, 690732, 715401, 953868, 1112846, 1430802, 1669269, 2225692, 2861604, 3338538, 5007807, 6677076, 10015614, 20031228]

約数ペア:

[(1, 20031228), (2, 10015614), (3, 6677076), (4, 5007807), (6, 3338538), (7, 2861604), (9, 2225692), (12, 1669269), (14, 1430802), (18, 1112846), (21, 953868), (28, 715401), (29, 690732), (36, 556423), (42, 476934), (58, 345366), (63, 317956), (84, 238467), (87, 230244), (116, 172683), (126, 158978), (174, 115122), (203, 98676), (252, 79489), (261, 76748), (348, 57561), (406, 49338), (522, 38374), (609, 32892), (812, 24669), (1044, 19187), (1218, 16446), (1827, 10964), (2436, 8223), (2741, 7308), (3654, 5482)]