280121044

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^2\times {\mathrm{229}}^1$

素因数の和:405

約数の個数: 54

約数和(自身を含む): 580078170

約数和(自身を除く): 299957126

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 196, 229, 316, 458, 553, 916, 1106, 1603, 2212, 3206, 3871, 6241, 6412, 7742, 11221, 12482, 15484, 18091, 22442, 24964, 36182, 43687, 44884, 72364, 87374, 126637, 174748, 253274, 305809, 506548, 611618, 886459, 1223236, 1429189, 1772918, 2858378, 3545836, 5716756, 10004323, 20008646, 40017292, 70030261, 140060522, 280121044]

約数ペア:

[(1, 280121044), (2, 140060522), (4, 70030261), (7, 40017292), (14, 20008646), (28, 10004323), (49, 5716756), (79, 3545836), (98, 2858378), (158, 1772918), (196, 1429189), (229, 1223236), (316, 886459), (458, 611618), (553, 506548), (916, 305809), (1106, 253274), (1603, 174748), (2212, 126637), (3206, 87374), (3871, 72364), (6241, 44884), (6412, 43687), (7742, 36182), (11221, 24964), (12482, 22442), (15484, 18091)]