28208088

素因数分解:

$2^3\times 3^4\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:550

約数の個数: 80

約数和(自身を含む): 79976160

約数和(自身を除く): 51768072

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 101, 108, 162, 202, 216, 303, 324, 404, 431, 606, 648, 808, 862, 909, 1212, 1293, 1724, 1818, 2424, 2586, 2727, 3448, 3636, 3879, 5172, 5454, 7272, 7758, 8181, 10344, 10908, 11637, 15516, 16362, 21816, 23274, 31032, 32724, 34911, 43531, 46548, 65448, 69822, 87062, 93096, 130593, 139644, 174124, 261186, 279288, 348248, 391779, 522372, 783558, 1044744, 1175337, 1567116, 2350674, 3134232, 3526011, 4701348, 7052022, 9402696, 14104044, 28208088]

約数ペア:

[(1, 28208088), (2, 14104044), (3, 9402696), (4, 7052022), (6, 4701348), (8, 3526011), (9, 3134232), (12, 2350674), (18, 1567116), (24, 1175337), (27, 1044744), (36, 783558), (54, 522372), (72, 391779), (81, 348248), (101, 279288), (108, 261186), (162, 174124), (202, 139644), (216, 130593), (303, 93096), (324, 87062), (404, 69822), (431, 65448), (606, 46548), (648, 43531), (808, 34911), (862, 32724), (909, 31032), (1212, 23274), (1293, 21816), (1724, 16362), (1818, 15516), (2424, 11637), (2586, 10908), (2727, 10344), (3448, 8181), (3636, 7758), (3879, 7272), (5172, 5454)]