3216460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 7408800

約数和(自身を除く): 4192340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 139, 178, 260, 278, 356, 445, 556, 695, 890, 1157, 1390, 1780, 1807, 2314, 2780, 3614, 4628, 5785, 7228, 9035, 11570, 12371, 18070, 23140, 24742, 36140, 49484, 61855, 123710, 160823, 247420, 321646, 643292, 804115, 1608230, 3216460]

約数ペア:

[(1, 3216460), (2, 1608230), (4, 804115), (5, 643292), (10, 321646), (13, 247420), (20, 160823), (26, 123710), (52, 61855), (65, 49484), (89, 36140), (130, 24742), (139, 23140), (178, 18070), (260, 12371), (278, 11570), (356, 9035), (445, 7228), (556, 5785), (695, 4628), (890, 3614), (1157, 2780), (1390, 2314), (1780, 1807)]