128123973

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 201951360

約数和(自身を除く): 73827387

約数列:

[1, 3, 9, 19, 57, 61, 71, 171, 173, 183, 213, 519, 549, 639, 1159, 1349, 1557, 3287, 3477, 4047, 4331, 9861, 10431, 10553, 12141, 12283, 12993, 29583, 31659, 36849, 38979, 82289, 94977, 110547, 200507, 233377, 246867, 601521, 700131, 740601, 749263, 1804563, 2100393, 2247789, 6743367, 14235997, 42707991, 128123973]

約数ペア:

[(1, 128123973), (3, 42707991), (9, 14235997), (19, 6743367), (57, 2247789), (61, 2100393), (71, 1804563), (171, 749263), (173, 740601), (183, 700131), (213, 601521), (519, 246867), (549, 233377), (639, 200507), (1159, 110547), (1349, 94977), (1557, 82289), (3287, 38979), (3477, 36849), (4047, 31659), (4331, 29583), (9861, 12993), (10431, 12283), (10553, 12141)]