1220296887

素因数分解:

$3^3\times {\mathrm{29}}^2\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:1009

約数の個数: 48

約数和(自身を含む): 1905190560

約数和(自身を除く): 684893673

約数列:

[1, 3, 9, 27, 29, 61, 87, 183, 261, 549, 783, 841, 881, 1647, 1769, 2523, 2643, 5307, 7569, 7929, 15921, 22707, 23787, 25549, 47763, 51301, 53741, 76647, 153903, 161223, 229941, 461709, 483669, 689823, 740921, 1385127, 1451007, 1558489, 2222763, 4675467, 6668289, 14026401, 20004867, 42079203, 45196181, 135588543, 406765629, 1220296887]

約数ペア:

[(1, 1220296887), (3, 406765629), (9, 135588543), (27, 45196181), (29, 42079203), (61, 20004867), (87, 14026401), (183, 6668289), (261, 4675467), (549, 2222763), (783, 1558489), (841, 1451007), (881, 1385127), (1647, 740921), (1769, 689823), (2523, 483669), (2643, 461709), (5307, 229941), (7569, 161223), (7929, 153903), (15921, 76647), (22707, 53741), (23787, 51301), (25549, 47763)]