28073556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1103}}^1$

素因数の和:1221

約数の個数: 72

約数和(自身を含む): 81978624

約数和(自身を除く): 53905068

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 101, 126, 202, 252, 303, 404, 606, 707, 909, 1103, 1212, 1414, 1818, 2121, 2206, 2828, 3309, 3636, 4242, 4412, 6363, 6618, 7721, 8484, 9927, 12726, 13236, 15442, 19854, 23163, 25452, 30884, 39708, 46326, 69489, 92652, 111403, 138978, 222806, 277956, 334209, 445612, 668418, 779821, 1002627, 1336836, 1559642, 2005254, 2339463, 3119284, 4010508, 4678926, 7018389, 9357852, 14036778, 28073556]

約数ペア:

[(1, 28073556), (2, 14036778), (3, 9357852), (4, 7018389), (6, 4678926), (7, 4010508), (9, 3119284), (12, 2339463), (14, 2005254), (18, 1559642), (21, 1336836), (28, 1002627), (36, 779821), (42, 668418), (63, 445612), (84, 334209), (101, 277956), (126, 222806), (202, 138978), (252, 111403), (303, 92652), (404, 69489), (606, 46326), (707, 39708), (909, 30884), (1103, 25452), (1212, 23163), (1414, 19854), (1818, 15442), (2121, 13236), (2206, 12726), (2828, 9927), (3309, 8484), (3636, 7721), (4242, 6618), (4412, 6363)]